esd system operation

YYaannbbuu EExxppoorrtt RReeffiinneerryy PPrroojjeecctt OPERATING INSTRUCTIONS FOR SP1 TANK FARM

EMERGENCY PROCEDURES Document No.: 143-SP1-PE-OPM-0003

Revision No.: A Issue Date: 08 OCT 2013

General Confidential Page 2 of 53

TABLE OF CONTENTS

1.0 PURPOSE ................................................................................................................... 42.0 100 EMERGENCY SHUT DOWN ............................................................................... 43.0 200 LOSS OF UTILITIES .......................................................................................... 364.0 300 LOSS OF CRITICAL SYSTEMS/COMPONENTS ............................................. 455.0 400 UNUSUAL OCCURRENCES ............................................................................. 47TABLES

Table 1 MOS and SUO requirement ....................................................................................... 7

Table 2 Non phenolic pumps shutdown signals ...................................................................... 9

Table 3 phenolic pumps shutdown signals ........................................................................... 10

Table 4 crude pumps shutdown signals ................................................................................ 11

Table 5 NHT pumps shutdown signals ................................................................................. 12

Table 6 NHT pumps shutdown signals ................................................................................. 12

Table 7 DCU pumps shutdown signals ................................................................................. 13

Table 8 DHT pumps shutdown signals ................................................................................. 14

Table 9 HCK pumps shutdown signals ................................................................................. 15

Table 10 heavy naphtha pumps shutdown signals ............................................................... 16

Table 11 off spec diesel pumps signals ................................................................................ 17

Table 12 Isomerate, Light reformate , NHT light naphtha pumps shutdown signals ............. 20

Table 13 BEU raffinate pumps shutdown signals ................................................................. 20

Table 14 Reformate pumps shutdown signals ...................................................................... 21

Table 15 Light naphtha pumps shutdown signals ................................................................. 22

Table 16 propane pumps shutdown signals .......................................................................... 23

Table 17 Coker LPG pumps shutdown signals ..................................................................... 24





Table 18 Butane pumps shutdown signals ........................................................................... 27

Table 19 slop pumps shutdown signals ................................................................................ 27

Table 20 Desalter effluent shutdown signals ........................................................................ 27

Table 21 Benzene pumps shutdown signals ......................................................................... 28

Table 22 BEU pumps shutdown signals ............................................................................... 28

Table 23 Sulfur pumps and cooler shutdown signals ............................................................ 29

Table 24 Diesel pumps shutdown signals ............................................................................. 31

Table 25 Gasoline pumps shutdown signals ......................................................................... 34

Table 26 Benzene pumps shutdown signals ......................................................................... 35

Table 27 control valves fail action ......................................................................................... 36

Table 28 control valves fail action ......................................................................................... 40

Table 29 Shutdown valves fail action .................................................................................... 45

Table 30 Floating roof protected by foam system ................................................................. 48

Table 31 spheres and spheroids protected by water deluge system .................................... 50

Table 32 Fire and gas emergency table ................................................................................ 53





1.0 PURPOSE

This document covers step by step instructions for emergency procedure of SP1 scope of work (SWS-142, TKF-143, PBF-157, PSL-172).

2.0 100 EMERGENCY SHUT DOWN

The principal aims and objectives of a safety system are:

Protection of personnel. Protection of facility and equipment. Prevention of pollution to the environment.

The functions of the ESD shall include:

Automatically sense an abnormal operational or equipment condition. React automatically to this condition by shutting down and/or isolating the

installation, preventing any consequential effects of the abnormal condition.

Provide additional manual facilities for the shutdown and/or isolation and blow down of sections of the installation.

Provide audible and visual system status information for the operator and/or other Personnel as appropriate.

Provide sequence of events recording. Safety System Availability The facility is designed for 92% Plant-wide uptime (availability) with 95% unit availability for defined areas. The requirement for safety availability of safety systems is as listed

below:

SIL3 applications: 99.9% to 99.99% SIL2 applications: 99% to 99.9% SIL1 applications: 90 to 99%

The parameters considered for calculations are listed below:

MTTR: 8 hours Proof Test Interval: 10 years ( for Logic solver subsystem) Proof Test interval for Analog ESD Inputs (Transmitters, Transducers and

Trip Amplifiers): 12 months

Proof Test Interval for Discrete ESD Inputs such as process switches: 6 months





Proof Test Interval ( Full stroke test) for ZV (ESD Isolation Valves): 12 months (Note1)

Partial stroke test for ZV: 3 months Plant Design Lifetime: 25 years

Note1:ZV assemblies shall be fully stroked on yearly basis when a full ZV bypass is

Available, the process or equipment is spared or the process operation can be

Maintained.

Equipment Location The ProSafe-RS Safety System hardware, associated marshalling cabinets and network equipment are installed in PIBs/ PIRs and in the CCB which are indoor safe area locations, non-classified electrical area as per ANSI/ NFPA 70, NEC, Article 505. Saudi Aramco specifications require ESD system indoor equipment to be suitable for installation in climate controlled buildings with the following environment conditions:

Ambient temperature range: 10 oC to 35 oC Ambient relative humidity: 20% to 80%

ESD Inputs The input section of the ESD system shall be designed to receive input signals from Non-Intrinsically safe analog (HART) field devices or process activated switch contacts that are closed (i.e., normally energized) during healthy process conditions (and will open when process variables exceed predetermined limits).

All shutdown inputs shall be configured with input validation logic to detect transmitter failure. Input status shall be transmitted to the PAS for indication and alarming.

ESD Inputs: Failsafe Operation

ESD transmitter failure mode and transmitter validation logic shall be applied to minimize spurious trips and spurious alarms. Consequently, 1oo1 ESD transmitters shall be configured to have a defined failure mode, in the direction opposite to the trip setting. In case of a transmitter fault, a time delayed shutdown is applied up to 30 minutes, if the fault is not rectified within this time delay.

A single transmitter may be used to provide both Low-Low trip (LTRP) and High-High trip (HTRP) ESD input signals if that the transmitter's calibrated range spans both LTRP and HTRP trip settings, and that it is acceptable to bypass both LTRP and HTRP inputs at the same time when performing maintenance on the transmitter. For 1oo1 ESD transmitters used for both HTRP and LTRP, the fail safe configuration shall be towards the HTRP by default unless otherwise specified.

The digital input shall be validated upon any fault detection independently depending on the fault detection design. The fail safe setting in input channel





parameter and signal validation setting in application program shall be configured independently accordingly.

All ESD digital input (trip initiators) shall be configured to failsafe to trip on detection of a channel and/or line fault. Line monitoring (detect disconnection and detect short circuit) are not provided for limit switches that are non-trip initiator.

ESD Outputs ESD outputs shall be designed to be Non- Intrinsically safe, normally energized (when healthy) and de-energize upon the loss of appropriate input signals unless otherwise specified.

However, alarm/ local indication lamp outputs from the ESD system shall be configured to energize on trip.

ESD outputs shall go to de-energized state on occurrence of a channel fault or wire

Break. All ESD outputs to ZVs (ESD isolation valves) shall have line monitoring to detect disconnection in case of a wire break.

Line monitoring for digital output channels are selected by channel parameter settings in the ProSafe-RS software configuration. For details, refer to ESD Software Design Specifications document [192-SP1-PE-ESD-1002].

ESD Reset ESD logic shall be designed such that if it is de-energized for any reason, it can only be reset or reenergized by deliberate, momentary actuation of a reset button.

ESD systems reset buttons shall be initiated from the PAS operator's workstation (HIS) along with an event log, to time-tag the actuation of the reset by its specific tag number and descriptor.

Resetting ESD system logic shall not cause a ZV (ESD isolation valve) or other equipment to automatically return to its normal operating position or state. Manual intervention by field operator is required to return a ZV to its normal state after a trip.

ESD Input & Output Bypasses All shutdown sensing devices shall have an input bypass switch to facilitate maintenance or testing. Bypass switches shall be software-configured with a restrictive access mechanism using a MOS Enable Authentication Soft Switch and password. The MOS Enable Authentication Switch will remain active after successful password entry for a predetermined time period (presently set at 5 minutes). MOS input bypasses are only required for input signals wired to the ESD system and used for shutdown logic.

Input bypass switch implementation shall be software configured. Activation of an input bypass switch shall confirm the bypass logic and cause an associated status light or graphic window to be illuminated. Activation or deactivation of a bypass switch shall initiate a system generated alarm in the DCS HIS and SOE event log which archives the change of state of the bypass switch with its tag number and descriptor.





Input bypasses shall not result in the loss of measurement and/or annunciation of the condition being monitored by the ESD.

Input bypass switches are not envisaged for ESD trip push/ pull buttons.

Start-up Bypasses Timed automatic startup bypass shall be configured in ESD application software for devices which would prevent the normal startup of plant equipment such as minimum flow, level, pressure, temperature, motor load startup-current and vibration. Startup bypasses shall be automatically reset when the plant or equipment reaches normal operating parameters or when a prescribed time period has elapsed.

Activation or deactivation of an automatic startup bypass switch shall initiate an SOE

event log which archives the change of state of the bypass switch with its tag number and descriptor.

Startup bypass timers shall be specified including a stabilization timer for operating

parameters to stabilize after the equipment has started up. The stabilization time

specified could be in the order of ten seconds or as per individual process requirements.

Below table identifies types of signals that have MOS and / or SUO switches: Signals that require Maintenance

Override Switches (MOS) Signals that require Start Up Override

Switches (SUO)

1 Open Limit Switches (ZXSO) of normal ZV's (111 off)

1 Open Limit Switches (ZXSO) of Discharge ZV's (as per attached List)

2.a 100% open (ZXSO) of Critical ZV's (16 off)

2 Common SOU for Critical Discharge ZV's Limit Switches (0%, 80%, 100%) (as per attached List)

2.b 80% open (ZXSO) of Critical ZV's (16 off)

3 SP-7 Trip Signals (172-YS-G-1001/1002/1011)

2.c Close (ZXSC) of Critical ZV's (16 off) 3 Level Transmitters (LIT) connected to

ESD (13 off)

4 All VMS Trip Signals (except for 2oo2 voting)

5 MOV's Open Limit Switches- XSO (from DCS) as in ESD Logic Diagram

6 Level Switches (8 off) 143-LS-0005A/B/C/D & 143-LS-0006A/B/C/D

7 Temperature Switches (7-off) (143-TS-0062/64/67/87/56/57, 172-TS-0015) on progressive cavity pumps.

8 SP-7 Trip Signals (172-YS-G-1001/1002/1011)

Table 1 MOS and SUO requirement





Alarm Annunciation and First Out Status ESD input alarms shall be combined into first-out groups, within each ESD system, to distinguish between initial and subsequent alarms. This information shall be available on the DCS HMI.

First Out groups shall be configured based on logic groups or equipment basis as applicable. Each first-out group shall have a separate reset faceplate button. First-out status shall be reset when the trip initiators goes back to normal condition upon activation of the First-out reset.

Architectural Design of the ESD System The ProSafe-RS comprises Safety Control Station(s) (SCS), the Safety Engineering PC (SENG), and the real-time control bus called Vnet/IP that connects the SCS and the SENG and also integrates the ProSafe-RS with the PAS (Centum VP DCS). The SCS performs safety control for ESD application, and the SENG is used for engineering and maintenance of the SCS. The SCS can be operated and monitored by the HIS (human interface station) of the PAS.

Fault Tolerant Design The ESD system is a dedicated system using Yokogawa ProSafe RS Safety

Instrumented System incorporating a redundant architecture which is fault tolerant, failsafe and fully integrated with the PAS via a redundant, common safety and control bus (Vnet/IP).

Each ProSafe-RS CPU, input or output function module features a dual architecture,

providing SIL 3 level protection on a single card.

In case of a failure of one of the redundantly configured CPU or IO modules, the system continues to operate without any degraded or crippled mode

Sequence of Events (SOE) SOER (Sequence of Events Recorder) is a function for recording events detected by an SCS so that these can be used in analysis. With SOER, changes in analog

inputs/outputs, discrete inputs/outputs and application logics can be collected/saved as event information. Collected event information is displayed in the SOE Viewer. Moreover, a function to synchronize to the standard time is provided in order to maintain the accuracy of the time stamps attached to the events.

Sequence of Events Recording for ESD system includes:

ESD inputs and transition of analog/digital devices past shutdown limits ESD pull/push buttons, Manual Reset buttons ESD DI are time stamped at the Digital input module ESD Analog Inputs are time stamped in the application logic scan cycle MOS Enable/ Disable operation

The below tables shows the shutdown signals for SP1 scope.





SWS-NP-3000 Non-Phenolic Sour Water Storage Tank The shutdown of the non-phenolic system is carried out by the following signal:

Table 2 Non phenolic pumps shutdown signals

Tag No. Description Interlock Action

142-ZXSC-0057 142- G-0005A/B discharge header valve close

Initiate an ESD: Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A/B

142-ZHS-0057D 15 m remote close 142-ZV-0057 Initiate an ESD: Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A/B

142-ZIC-0057A close 142-ZV-0057 from DCS Initiate an ESD: Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A/B

142-ZXSC-0056 142- G-0005A/B suction header valve close

Initiate an ESD: Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A/B

142-ZHS-0056D 15 m remote close 142-ZV-0056 Initiate an ESD: Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A/B

142-ZIC-0056A CLOSE 142-ZV-0056 from DCS Initiate an ESD: Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A/B

142-HS-0049A 142- G-0005A stop from DCS Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005A

142-HS-0050A 142- G-0005B stop from DCS Stop Non Phenolic SW Stripper Skim oil Pumps 142-G-0005B

142-HS-0051A 142- G-0002A stop from DCS Stop Non Phenolic SW Stripper Feed Pump 142-G-0002A

142-HS-0052A 142- G-0002Bstop from DCS Stop Non Phenolic SW Stripper Feed Pump 142-G-0002B





Phenolic Sour Water Storage Tank The shutdown of the phenolic system is carried out by the following signal:

Table 3 phenolic pumps shutdown signals

Tag No. Description Interlock Action 142-ZXSC-0552 142- G-0025A/B Suction header valve close

Initiate an ESD: Stop Phenolic SW Skim Oil Pump 142-G-0025A/B

142-ZHS-0552D 15 m remote close 142-ZV-0552 Initiate an ESD: Stop Phenolic SW Skim Oil Pump 142-G-0025A/B

142-ZIC-0552A close 142-ZV-0552A from DCS Initiate an ESD: Stop Phenolic SW Skim Oil Pump 142-G-0025A/B

142-ZXSC-0553 142- G-0025A/B Discharge header valve close Initiate an ESD: Stop Phenolic SW Skim Oil Pump 142-G-0025A/B

142-ZHS-0553D 15 m remote close 142-ZV-0553 Initiate an ESD: Stop Phenolic SW Skim Oil Pump 142-G-0025A/B

142-ZIC-0553A close 142-ZV-0553 from DCS Initiate an ESD: Stop Phenolic SW Skim Oil Pump 142-G-0025A/B142-HS-0547A 142- G-0025A stop from DCS Stop Phenolic SW Skim Oil Pump 142-G-0025A 142-HS-0548A 142- G-0025B stop from DCS Stop Phenolic SW Skim Oil Pump 142-G-0025B

142-LIT-1085 142-C-1022 Phenolic SW Stripper Level (By EPC-3) LAHH-1085 Stop Phenolic SW Stripper Feed Pumps Train 142-G-1022/0023

142-HS-1003A 142- G-1022 stop from DCS Stop Phenolic SW Stripper Feed Pumps Train 142-G-1022.

142-HS-0546A 142- G-0023 stop from DCS Stop Phenolic SW Stripper Feed Pumps Train 142-G-0023.

142-LIT-2085 142-C-2022 Phenolic SW Stripper Level (By EPC-3)LAHH-2085 Stop Phenolic SW Stripper Feed Pumps Train 142-G-2022 /0023

142-HS-2003A 142- G-2022 stop from DCS Stop Phenolic SW Stripper Feed Pump Train 142-G-2022





TKF-NP-3000 Crude Storage The shutdown of the crude oil system is carried out by the following process signals:

Table 4 crude pumps shutdown signals


143-ZXSO-0557B 143-G-0001A/B/C suction valve header (80% open) Stop the crude charge pumps (143-G-0001A/B/C)

143-ZXSC-0557 143-G-0001A/B/C suction valve header close Stop the crude charge pumps (143-G-0001A/B/C)

143-ZHS-0557D 15 m remote close 143-ZV-0557 Stop the crude charge pumps (143-G-0001A/B/C)

143-ZXSO-0562B 143-G-0001A/B/C discharge header valve (80% open) Stop the crude charge pumps (143-G-0001A/B/C)

143-ZXSC-0562 143-G-0001A/B/C discharge header valve is closed Stop the crude charge pumps (143-G-0001A/B/C)

143-HS-0036A 143-G-0001A stop PB from DCS Stop the crude charge pump (143-G-0001A)

143-HS-0037A 143-G-0001B stop PB from DCS Stop the crude charge pump (143-G-0001B)

143-HS-0046A 143-G-0001C stop PB from DCS Stop the crude charge pump (143-G-0001C)

143-YS-1001O 143-G-0001A HH Vibration Stop the crude charge pump (143-G-0001A)

143-YS-2001O 143-G-0001A HH Temperature Stop the crude charge pump (143-G-0001A)

143-YS-1101O 143-G-0001B HH Vibration Stop the crude charge pump (143-G-0001B)

143-YS-2101O 143-G-0001B HH Temperature Stop the crude charge pump (143-G-0001B).

143-YS-1201O 143-G-0001C HH Vibration Stop the crude charge pump (143-G-0001C).

143-YS-2201O 143-G-0001C HH Temperature Stop the crude charge pump (143-G-0001C).





Naphtha Hydrotreater (NHT) Feed Storage The shutdown of the NHT system is carried out by the following process signals:

Table 5 NHT pumps shutdown signals Naphtha Hydrotreater Feed Tank (Coker Naphtha/ SGP Naphtha) (143-D-0004) The shutdown of the NHT feed system (COKER NAPHTHA/SGP NAPHTHA) is carried out by the following process signals:

Table 6 NHT pumps shutdown signals


143-ZHS-0107D 15 m remote close 143-ZV-0107 Initiate an ESD: Stop the NHT feed pumps SGP Naphtha (143-G-0003A/B).

143-ZHS-0108D 15 m remote close 143-ZV-0108 Initiate an ESD: Stop the NHT feed pumps SGP Naphtha (143-G-0003A/B).

143-HS-0103A 143-G-0003A stop PB from DCS Stop the NHT feed pump SGP Naphtha (143-G-0003A).

142-HS-0104A 143-G-0003B stop PB from DCS Stop the NHT feed pump SGP Naphtha (143-G-0003B).

143-YS-2003O 143-G-0003A HH Temperature Initiate an ESD: Stop the NHT feed pump SGP Naphtha (143-G-0003A).

143-YS-2103O 143-G-0003B HH Temperature Initiate an ESD: Stop the NHT feed pumps SGP Naphtha (143-G-0003B).


143-ZHS-0530D 15 m remote close 143-ZV-0530

Initiate an ESD: Stop the NHT feed pumps Coker Naphtha (143-G-0023A/B).

143-ZHS-0533D 15 m remote close 143-ZV-0533 Initiate an ESD: Stop the NHT feed pumps Coker Naphtha (143-G-0023A/B).

143-ZIC-0533A Close 143-ZV-0533 from DCS Initiate an ESD: Stop the NHT feed pumps Coker Naphtha (143-G-0023A/B).

143-HS-0105A 143-G-0023A stop PB from DCS Stop the NHT feed pump Coker Naphtha (143-G-0023A).

143-HS-0106A 143-G-0023B stop PB from DCS Stop the NHT feed pump Coker Naphtha (143-G-0023B).





DCU FEED STORAGE: The shutdown of the DCU feed storage system is carried out by the following process signals:

Table 7 DCU pumps shutdown signals

Tag No. Description Interlock Action 143-ZXSO-0424B 143-G-0004A/B suction header

valve (80% Open) Initiate an ESD: Stop the DCU feed pumps (143-G-0004A/B).

143-ZXSC-0424 143-G-0004A/B suction header valve close

Initiate an ESD: Stop the DCU feed pumps (143-G-0004A/B).

143-ZHS-0424D 15 m remote close 143-ZV-0424 Initiate an ESD: Stop the DCU feed pumps (143-G-0004A/B).

143-ZXSO-0425B 143-G-0004A/B discharge header valve (80% Open)


143-ZXSC-0425 143-G-0004A/B discharge header valve close


142-ZHS-0425D 15 m remote close 143-ZV-0425 Initiate an ESD: Stop the DCU feed pumps (143-G-0004A/B). 143-HS-0138A

143-G-0004A stop PB from DCS Stop the DCU feed pump (143-G-0004A).

143-HS-0139A 143-G-0004B stop PB from DCS Stop the DCU feed pump (143-G-0004B). 143-YS-1004O

143-G-0004A HH Vibration Initiate an ESD: Stop the DCU feed pump (143-G-0004A). 143-YS-2004O

143-G-0004A HH Temperature Initiate an ESD: Stop the DCU feed pump (143-G-0004A).





DHT FEED STORAGE: The shutdown of the DHT FEED system is carried out by the following process signals:

Table 8 DHT pumps shutdown signals

Tag No. Description Interlock Action 143-ZHS-0916D 15 m remote close 143-ZV-0916 Initiate an ESD:

Stop the DHT feed pumps (143-G-0006 A/B) and the DHT feed pumps start-up (143-G-0005A/B).

143-ZHS-0917D 15 m remote close 143-ZV-0917 Initiate an ESD: Stop the DHT feed pumps (143-G-0006 B/C).

143-ZHS-0600D 15 m remote close 143-ZV-0600 Initiate an ESD: Stop the DHT feed pumps (143-G-0006 A/B/C).

143-ZHS-0610D 15 m remote close 143-ZV-0610 Initiate an ESD: Stop the DHT feed pumps start-up (143-G-0005A/B).

143-HS-0175A 143-G-0006 A stop PB from DCS

Stop the DHT feed pump (143-G-0006A).

143-HS-0176A 143-G-0006 B stop PB from DCS

Stop the DHT feed pump (143-G-0006B).

143-HS-0177A 143-G-0006 C stop PB from DCS Stop the DHT feed pump (143-G-0006C).

143-HS-0188A 143-G-0005 A stop PB from DCS Stop the DHT feed pump-start-up (143-G-0005A).

143-HS-0189A 143-G-0005 B stop PB from DCS Stop the DHT feed pump-start-up (143-G-0005B).

143-YS-1005O 143-G-0005A HH vibration Initiate an ESD: Stop the DHT feed pump-start-up (143-G-0005A).

143-YS-2005O 143-G-0005A HH Temperature Initiate an ESD: Stop the DHT feed pump-start-up (143-G-0005A).

143-YS-1105O 143-G-0005 B HH Vibration Initiate an ESD: Stop the DHT feed pump-start-up (143-G-0005B).

143-YS-2105O 143-G-0005 B HH Temperature Initiate an ESD: Stop the DHT feed pump-start-up (143-G-0005B).





HCK FEED storage:

Table 9 HCK pumps shutdown signals


143-ZHS-0918D 15 m remote close 143-ZV-0918 Initiate an ESD: Stop the HCK feed pumps (143-G-0007 A/B) and the HCK feed pumps start-up (143-G-0008A/B).

143-ZHS-0919D 15 m remote close 143-ZV-0919 Initiate an ESD: Stop the HCK feed pumps (143-G-0007 B/C).

143-ZHS-0616D 15 m remote close 143-ZV-0616 Initiate an ESD: Stop the HCK feed pumps (143-G-0007 A/B/C).

143-ZHS-0636D 15 m remote close 143-ZV-0636 Initiate an ESD: Stop the HCK feed pumps start-up (143-G-0008A/B).

143-HS-0236A 143-G-0007 A stop PB from DCS Stop the HCK feed pump (143-G-0007A).

143-HS-0237A 143-G-0007 B stop PB from DCS Stop the HCK feed pump (143-G-0007B).

143-HS-0238A 143-G-0007 C stop PB from DCS Stop the HCK feed pump (143-G-0007C).

143-HS-0248A 143-G-0008 A stop PB from DCS Stop the HCK feed pump-start-up (143-G-0008A).

143-HS-0249A 143-G-0008 B stop PB from DCS Stop the HCK feed pump-start-up (143-G-0008B).

143-YS-1008O 143-G-0008A HH Vibration Initiate an ESD: Stop the HCK feed pump-start-up (143-G-0008A).

143-YS-2008O 143-G-0008A HH Temperature Initiate an ESD: Stop the HCK feed pump-start-up (143-G-0008A).

143-YS-1108O 143-G-0008 B HH Vibration Initiate an ESD: Stop the HCK feed pump-start-up (143-G-0008B).

143-YS-2108O 143-G-0008 B HH Temperature Initiate an ESD: Stop the HCK feed pump-start-up (143-G-0008B).





HEAVY NAPHTHA FEED STORAGE:

Table 10 heavy naphtha pumps shutdown signals


143-ZHS-0585D 15 m remote close 143-ZV-0585 Initiate an ESD: Stop the heavy naphtha feed pumps (143-G-0009A/B).

143-ZHS-0588D 15 m remote close 143-ZV-0588 Initiate an ESD: Stop the heavy naphtha feed pumps (143-G-0009A/B).

143-HS-0278A 143-G-0009A stop PB from DCS Stop the heavy naphtha feed pump (143-G-0009A).

143-HS-0279A 143-G-0009B stop PB from DCS Stop the heavy naphtha feed pump (143-G-0009B).

143-YS-1009O 143-G-0009A HH vibration Initiate an ESD: Stop the heavy naphtha feed pump (143-G-0009A).

143-YS-2009O 143-G-0009A HH temperature Initiate an ESD: Stop the heavy naphtha feed pump (143-G-0009A).

143-YS-1109O 143-G-0009B HH Vibration Initiate an ESD: Stop the heavy naphtha feed pump (143-G-0009B).

143-YS-2109O 143-G-0009A HH Temperature Initiate an ESD: Stop the heavy naphtha feed pump (143-G-0009B).





OFF-SPEC DIESEL/FLUSH OIL TANK STORAGE: The shutdown of the OFF-SPEC DIESEL/FLUSH OIL storage system is carried out by the following process signals:

Table 11 off spec diesel pumps signals


143-ZHS-0880D 15 m remote close 143-ZV-0880 Initiate an ESD: Stop the HCK Transfer pumps (143-G-0010) and Flush oil pump (143-G-0043).

143-ZHS-0881D 15 m remote close 143-ZV-0881 Initiate an ESD: Stop the HCK Transfer pumps (143-G-0010).

143-HS-0364A 143-G-0010 stop PB from DCS Stop the HCK Transfer pumps (143-G-0010).

143-ZHS-0887D 15 m remote close 143-ZV-0887 Initiate an ESD: Stop Flush oil pump (143-G-0043).

143-HS-0888A 143-G-0043 stop PB from DCS Stop Flush oil pump (143-G-0043).

143-YS-1043O 143-G-0043 HH VIBRATION Stop Flush oil pump (143-G-0043).

143-YS-2043O 143-G-0043 HH Temperature Stop Flush oil pump (143-G-0043).





ISOMERATE/LIGHT REFORMATE AND NHT LIGHT NAPHTHA STORAGE TANKS: The shutdown of isomerate/light reformate storage system is carried out by the following process signals:


143-LIT-0512 143-D-0014 level low-low

Initiate an ESD: Stop the isomerate/light reformate pumps (143-G-0011A/B). Stop the NHT light naphtha pumps (143-G-0026A/B) Stop the HGU light naphtha HP pumps (143-G-0030/0073A/B) Stop the CCR Heavy Reformate Blending pumps (143-G-0012A/B) Stop the Boiler Fuel Light Naphta pump 143-G-0045





143-ZHS-0503D 15 m remote close 143-ZV-0503 Initiate an ESD: Close isomerate/light reformate 143-ZV-0503 inlet to 143-D-0014

143- ZHS-0504D 143- ZHS-0506D 143- ZHS-0508D 143- ZHS-0509D 143- ZHS-0510D 143- ZHS-0511D

15 m remote close 143-ZV-0504 0506 0508 0509 0510 0511

Initiate an ESD: Stop the isomerate/light reformate pumps (143-G-0011A/B). Stop the NHT light naphtha pumps (143-G-0026A/B) Stop the HGU light naphtha HP pumps (143-G-





Tag No. Description Interlock Action 0030/0073A/B) Stop the CCR Heavy Reformate Blending pumps (143-G-0012A/B) Stop the Boiler Fuel Light Naphta pump 143-G-0045

143-ZHS-0540D 143- ZHS-0542D

15 m remote close 143-ZV-0540 15 m remote close 143-ZV-0542

Initiate an ESD: Stop the isomerate/light reformate pumps (143-G-0011A/B).

143-ZHS-0620D 143- ZHS-0623D


Initiate an ESD: Stop the NHT light naphtha pumps (143-G-0026A/B).

143-ZHS-0637D 143- ZHS-0638D


Initiate an ESD: Stop the Boiler fuel naphtha pumps (143-G-0045).

143-ZHS-0660D 143- ZHS-0663D


Initiate an ESD: Stop the HGU light naphtha HP pumps (143-G-0030/0073A/B)

143-HS-0548A 143-G-0011A stop PB from DCS Stop the isomerate/light reformate pump (143-G-0011A).

143-HS-0548A 143-G-0011B stop PB from DCS Stop the isomerate/light reformate pump (143-G-0011B).

143-HS-0628A 143-G-0026A stop PB from DCS Stop the NHT light naphtha pumps (143-G-0026A)

143-HS-0629A 143-G-0026B stop PB from DCS Stop the NHT light naphtha pumps (143-G-0026B)

143-HS-0645A 143-G-0045 stop PB from DCS Stop the Boiler fuel naphtha pumps (143-G-0045).

143-HS-0668A 143-G-0030A stop PB from DCS Stop the HGU light naphtha HP pumps (143-G-0030A)

143-HS-0670A 143-G-0073A stop PB from DCS Stop the HGU light naphtha HP pumps (143-G-0073A)

143-HS-0669A 143-G-0030B stop PB from DCS Stop the HGU light naphtha HP pumps (143-G-0030B)

143-HS-0671A 143-G-0073B stop PB from DCS Stop the HGU light naphtha HP pumps (143-G-0073B)

143-YS-1011O 143-G-0011A HH vibration Initiate an ESD: Stop the isomerate/light reformate pump (143-G-0011A).

143-YS-1111O 143-G-0011B HH Vibration Initiate an ESD: Stop the isomerate/light reformate pump (143-G-0011B).

143-YS-1026O 143-G-0026A HH Vibration Initiate an ESD: Stop the NHT light naphtha pumps (143-G-0026A).

143-YS-1126O 143-G-0026B HH Vibration Initiate an ESD: Stop the NHT light naphtha pumps (143-G-0026A/B).






143-YS-1045O 143-G-0045 HH Vibration Initiate an ESD: Stop the Boiler fuel naphtha pumps (143-G-0045).

Table 12 Isomerate, Light reformate , NHT light naphtha pumps shutdown signals

BEU RAFFINATE STORAGE TANK: The shutdown of the BEU RAFFINATE pumps is carried out by the following process signals:

Table 13 BEU raffinate pumps shutdown signals


Stop the BEU RAFFINATE PUMP (143-G-0025A/B).

143-ZHS-0448D 15 m remote close 143-ZV-0448 Initiate an ESD: Stop the BEU RAFFINATE PUMP (143-G-0025A/B).

143-HS-0440A 143-G-0025A stop PB from DCS Stop the BEU RAFFINATE PUMP (143-G-0025A).

142-HS-0438A 143-G-0025B stop PB from DCS Stop the BEU RAFFINATE PUMP (143-G-0025B).

143-YS-1025O 143-G-0025A HH VIBRATION Initiate an ESD: Stop the BEU RAFFINATE PUMP (143-G-0025A).

143-YS-1125O 143-G-0025B HH VIBRATION Initiate an ESD: Stop the BEU RAFFINATE PUMP (143-G-0025B).





REFORMATE STORAGE TANK The shutdown of CCR heavy reformate is carried out by the following process signals:

Table 14 Reformate pumps shutdown signals


Stop the CCR heavy reformate blending pumps (143-G-0012A/B).

143-ZHS-0575D 15 m remote close 143-ZV-0575 Initiate an ESD: Stop the CCR heavy reformate blending pumps (143-G-0012A/B).

143-HS-0397A 143-G-0012A stop PB from DCS Stop the CCR heavy reformate blending pumps (143-G-0012A).

143-HS-0398A 143-G-0012B stop PB from DCS Stop the CCR heavy reformate blending pumps (143-G-0012B).

143-YS-1012O 143-G-0012A HH VIBRATION Initiate an ESD: Stop the CCR heavy reformate blending pumps (143-G-0012A).

43-YS-2012O 143-G-0012A HH TEMPERATURE Initiate an ESD: Stop the CCR heavy reformate blending pumps (143-G-0012A).

143-YS-1112O 143-G-0012B HH VIBRATION Initiate an ESD: Stop the CCR heavy reformate blending pumps (143-G-0012B).

43-YS-2112O 143-G-0012B HH TEMPERATURE Initiate an ESD: Stop the CCR heavy reformate blending pumps (143-G-0012B).





LIGHT NAPHTHA TANK The shutdown of CCR heavy reformate is carried out by the following process signals:

Table 15 Light naphtha pumps shutdown signals PROPANE SPHERES The shutdown of Propane sphere system is carried out by the following process signals:

Tag No. Description Interlock Action 143-LIT-0711 143-D-0025 level low-low Initiate an ESD:

Stop the HP propane booster and transfer pumps (143-G-0014A/B &143-G-0072A/B). Stop the LP propane transfer pumps (143-G-0015A/B).

143-LIT-0717 143-D-0024 level low-low Initiate an ESD: Stop the HP propane booster and transfer pumps (143-G-0014A/B &143-G-0072A/B). Stop the LP propane transfer pumps (143-G-0015A/B).

143-LIT-0723 143-D-0026 level low-low Initiate an ESD: Stop the HP propane booster and transfer pumps (143-G-0014A/B &143-G-0072A/B). Stop the LP propane transfer pumps (143-G-0015A/B).

143-ZHS-0748D 143-ZHS-0749D

15 m remote close 143-ZV-0748 0749

Initiate an ESD: Stop the HP propane booster and transfer pumps (143-G-0014A/B &143-G-0072A/B).

143-ZHS-0701D 15 m remote close 143-ZV-0701 Initiate an ESD:


Stop the HCK light naphtha pumps (143-G-0013A/B).

143-ZHS-0914D 15 m remote close 143-ZV-0914 Initiate an ESD: Stop the HCK light naphtha pumps (143-G-0013A/B).

143-HS-0926A 143-G-0013A stop PB from DCS Stop the HCK light naphtha pumps (143-G-0013A).

143-HS-0927A 143-G-0013B stop PB from DCS Stop the HCK light naphtha pumps (143-G-0013B).

143-YS-1013O 143-G-0013A HH VIBRATION Initiate an ESD: Stop the HCK light naphtha pumps (143-G-0013A).

143-YS-1113O 143-G-0013B HH VIBRATION Initiate an ESD: Stop the HCK light naphtha pumps (143-G-0013B).





Tag No. Description Interlock Action 143-ZHS-0706D 143-ZHS-0703D 143-ZHS-0707D 143-ZHS-0705D 143-ZHS-0708D

0706 0703 0707 0705 0708

Stop the HP propane booster and transfer pumps (143-G-0014A/B &143-G-0072A/B). Stop the LP propane transfer pumps (143-G-0015A/B).

143-ZHS-0752D 143-ZHS-0756D 143-ZHS-0757D

15 m remote close 143-ZV-0752 0756 0757

Initiate an ESD: Stop the LP propane transfer pumps (143-G-0015B).

143-HS-0732A 143-G-0014A stop PB from DCS Stop the HP propane booster pump (143-G-0014A)

143-HS-0735A 143-G-0014B stop PB from DCS Stop the HP propane booster pump (143-G-0014B)

143-HS-0736A 143-G-0072A stop PB from DCS Stop the HP propane transfer pump (143-G-0072A)

143-HS-0737A 143-G-0072B stop PB from DCS Stop the HP propane transfer pump (143-G-0072B)

143-HS-0741A 143-G-0015B stop PB from DCS Stop the LP propane transfer pump (143-G-0015B)

143-YS-1072O 143-G-0072A HH vibration Initiate an ESD: Stop the HP propane booster and transfer pumps (143-G-0014A &143-G-0072A).

143-YS-1172O 143-G-0072B HH vibration Initiate an ESD: Stop the HP propane booster and transfer pumps (143-G-0014B &143-G-0072B).

143-YS-1115O 143-G-0015B HH VIBRATION Initiate an ESD: Stop the LP propane transfer pumps (143-G-0015B).

Table 16 propane pumps shutdown signals





COKER LPG spheres (143-D-0031/0032) The shutdown of Coker LPG sphere system is carried out by the following process signals:


143-LIT-0463 143-D-0031 level low-low Initiate an ESD: Stop the Coker LPG pumps (143-G-0024A/B).

143-LIT-0859 143-D-0032 level low-low Initiate an ESD: Stop the Coker LPG pumps (143-G-0024A/B).

143-ZHS-0479D 143-ZHS-0470D 143-ZHS-0477D 143-ZHS-0867D 143-ZHS-0869D

15 m remote close 143-ZV-0479 0470 0477 0867 0869

Initiate an ESD: Stop the Coker LPG pumps (143-G-0024A/B).

143-ZHS-0471D 15 m remote close 143-ZV-0471 Initiate an ESD: Stop the Coker LPG pumps (143-G-0024A).

143-ZHS-0478D 15 m remote close 143-ZV-0478 Initiate an ESD: Stop the Coker LPG pumps (143-G-0024B).

143-HS-0458A 143-G-0024A stop PB from DCS Stop the Coker LPG pumps (143-G-0024A). 143-HS-0461A 143-G-0024B stop PB from DCS Stop the Coker LPG pumps (143-G-0024B). 143-YS-1024O 143-G-0024A HH VIBRATION Initiate an ESD:

Stop the Coker LPG pumps (143-G-0024A). 143-YS-1124O 143-G-0024B HH VIBRATION Initiate an ESD:

Stop the Coker LPG pumps (143-G-0024B).

Table 17 Coker LPG pumps shutdown signals

MIXED BUTANE SPHERES The shutdown of Butane sphere system is carried out by the following process signals:


143-LIT-0824 143-D-0027 level low-low Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B).

143-LIT-0830 143-D-0028 level low-low Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B). Stop export butane transfer pumps (143-G-0068A/B).

143-LIT-0836 143-D-0029 level low-low Initiate an ESD:





Tag No. Description Interlock Action Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B). Stop export butane transfer pumps (143-G-0068A/B).

143-LIT-0853 143-D-0030 level low-low Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B). Stop export butane transfer pumps (143-G-0068A/B).

143-LIT-0859 143-D-0032 level low-low Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B).

143-ZHS-0842D 143-ZHS-0847D 143-ZHS-0867D 143-ZHS-0869D

15 m remote close 143-ZV-0842 0847 0867 0869

Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B).

143-ZHS-0844D 143-ZHS-0848D 143-ZHS-0846D 143-ZHS-0849D 143-ZHS-0865D 143-ZHS-0868D

15 m remote close 143-ZV-0844 0848 0846 0849 0865 0868

Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B). Stop the LP butane transfer pumps (143-G-0017A/B). Stop export butane transfer pumps (143-G-0068A/B).

143-ZHS-0920D 143-ZHS-0921D


Initiate an ESD: Stop export butane transfer pumps (143-G-0068A/B).

143-ZHS-0819D 143-ZHS-0400D


Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A/B).

143-ZHS-0403D 143-ZHS-0402D


Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017A/B).


Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017A).


Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017B).

143-HS-0809A 143-G-0016A stop PB from DCS Stop the HP butane transfer pumps (143-G-0016A).

143-HS-0812A 143-G-0016B stop PB from DCS Stop the HP butane transfer pumps





Tag No. Description Interlock Action (143-G-0016B).

143-HS-0815A 143-G-0017A stop PB from DCS Stop the LP butane transfer pumps (143-G-0017A).

143-HS-0818A 143-G-0017B stop PB from DCS Stop the LP butane transfer pumps (143-G-0017B).

143-HS-0865A 143-G-0068A stop PB from DCS Stop export butane transfer pumps (143-G-0068A)

143-HS-0866A 143-G-0068B stop PB from DCS Stop export butane transfer pumps (143-G-0068B)

143-YS-1068O 143-G-0068A HH vibration Initiate an ESD: Stop export butane transfer pumps (143-G-0068A)

143-YS-1168O 143-G-0068B HH vibration Initiate an ESD: Stop export butane transfer pumps (143-G-0068B)

143-YS-1017O 143-G-0017A HH VIBRATION Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017A).

143-YS-1117O 143-G-0017B HH VIBRATION Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017B).

143-YS-2017O 143-G-0017A HH TEMPARTURE Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017A).

143-YS-2117O 143-G-0017B HH TEMPARTURE Initiate an ESD: Stop the LP butane transfer pumps (143-G-0017B).

143-YS-1016O 143-G-0016A HH VIBRATION Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A).

143-YS-1116O 143-G-0016B HH VIBRATION Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016B).

143-YS-2016O 143-G-0016A HH TEMPARTURE Initiate an ESD: Stop the HP butane transfer pumps (143-G-0016A).





Tag No. Description Interlock Action 143-YS-2116O 143-G-0016B HH TEMPARTURE Initiate an ESD:

Stop the HP butane transfer pumps (143-G-0016B).

Table 18 Butane pumps shutdown signals SLOP OIL TANKS: The shutdown of slop oil storage system is carried out by the following process signals:


143-LIT-0948 143-D-0047 level low-low Initiate an ESD: Stop the slop oil pumps (143-G-0028A & 143-G-0070).

143-ZHS-0498D 15 m remote close 143-ZV-0498 Initiate an ESD: Stop the slop oil pumps (143-G-0028B).

143-ZHS-0496D 143-ZHS-0497D


Initiate an ESD: Stop the slop oil pumps (143-G-0028A & 143-G-0070).


Initiate an ESD: Stop the slop oil pumps (143-G-0028B & 143-G-0070).

143-YS-1070O 143-G-0070 HH VIBRATION Initiate an ESD: Stop the slop oil pumps (143-G-0070).

Table 19 slop pumps shutdown signals DESALTER EFFLUENT STORAGE TANK:

Table 20 Desalter effluent shutdown signals

Tag No. Description Interlock Action 143-HS-0409A 143-G-0033 stop PB from DCS Stop Desalter effluent oil pump

(143-G-0033). 143-HS-0412A 143-G-0049 stop PB from DCS Stop Desalter rag layer to CDU pump

(143-G-0049). 143-HS-0415A 143-G-0034A stop PB from DCS Stop Desalter Effluent water pump

(143-G-0034A). 143-HS-0418A 143-G-0034B stop PB from DCS Stop Desalter Effluent water pump

(143-G-0034B).





BENZENE STORAGE TANK

Table 21 Benzene pumps shutdown signals BEU FEED TANK

Table 22 BEU pumps shutdown signals

Tag No. Description Interlock Action 143-ZHS-0474D 15 m remote close 143-ZV-0474 Initiate an ESD: Stop the benzene pumps (143-G-0027A/B).

143-ZHS-0476D 15 m remote close 143-ZV-0476 Initiate an ESD: Stop the benzene pumps (143-G-0027A/B).

143-HS-0962A 143-G-0027A stop PB from DCS Stop the benzene pump (143-G-0027A).

143-HS-0965A 143-G-0027B stop PB from DCS Stop the benzene pump (143-G-0027B).

143-LIC-0098 Low Liquid Level in Benzene Sump (143-D-0061) Stop the Benzene sump pump (143-G-0046)

143-HS-0098A STOP Benzene sump Pump (143-G-0046) Stop the Benzene sump pump (143-G-0046)

Tag No. Description Interlock Action 143-ZHS-0915D 15 m remote close 143-ZV-0915 Initiate an ESD: Stop the BEU FEED pumps (143-G-0035A/B).

143-ZHS-0925D 15 m remote close 143-ZV-0925 Initiate an ESD: Stop the BEU FEED pumps (143-G-0035A/B).

143-HS-0972A 143-G-0035A stop PB from DCS Stop the BEU FEED pumps (143-G-0035A).

143-HS-0973A 143-G-0035B stop PB from DCS Stop the BEU FEED pumps (143-G-0035B).

143-YS-1035O 143-G-0035A HH VIBRATION Stop the BEU FEED pumps (143-G-0035A).

143-YS-1135O 143-G-0035B HH VIBRATION Stop the BEU FEED pumps (143-G-0035B).





SULFUR STORAGE TANKS

Table 23 Sulfur pumps and cooler shutdown signals


143-HS-0606A 143-G-0050A stop PB from DCS Stop Sulfur condenate pump (143-G-0050A)

143-HS-0607A 143-G-0050B stop PB from DCS Stop Sulfur condenate pump (143-G-0050B)

143-HS-0611A 143-G-0051A stop PB from DCS Stop Sulfur Transfer pump (143-G-0051A)

143-HS-0612A 143-G-0051B stop PB from DCS Stop Sulfur Transfer pump (143-G-0051B)

143-HS-0601A 143-G-0047A stop PB from DCS Stop Sulfur Transfer pump (143-G-0047A)

143-HS-0602A 143-G-0047Bstop PB from DCS Stop Sulfur Transfer pump (143-G-0047B)

143-HS-0608A 143-E-0007A Fan stop PB from DCS Stop Condensate cooler (143-G-0007A)

143-VAH-0601 143-E-0007A Fan stop PB from DCS Stop Condensate cooler (143-G-0007A)

143-HS-0090A 143-E-0011A Fan stop PB from DCS STOP pump auxillary fan (143-E-0011A)

143-HS-0090B 143-E-0011B Fan stop PB from DCS STOP pump auxillary fan (143-E-0011B)





PSL-NP-3000 Diesel Export Storage Tanks


172-ZXSO-0090B

172-G-0001A/B/C suction valve header (80% Open)

Initiate an ESD: Stop the Diesel export pumps (172-G-0001A/B/C).

172-ZXSC-0090 172-G-0001A/B/C suction valve header close


172-ZXSO-0099B

172-G-0001A/B/C discharge valve header open (80% Open)


172-ZXSC-0099 172-G-0001A/B/C discharge valve header close


172-ZHS-0099D 15 m Remote Close 172-ZV-0099 Initiate an ESD: Stop the Diesel export pumps (172-G-0001A/B/C).

172-HS-0088A STOP Diesel Export Pump 172-G-0001A from DCS Stop the Diesel export pumps (172-G-0001A).

172-HS-0089A STOP Diesel Export Pump 172-G-0001B from DCS Stop the Diesel export pumps (172-G-0001B).

172-HS-0090A STOP Diesel Export Pump 172-G-0001C from DCS Stop the Diesel export pumps (172-G-0001C).

172-VSA-0001A 172-G-0001A High High Vibration (Main) Stop the Diesel export pumps (172-G-0001A).

172-VSB-0001A 172-G-0001A High High Vibration (Redundant) Stop the Diesel export pumps (172-G-0001A).

172-TSA-0001A 172-G-0001A High High Temperature (Main) Stop the Diesel export pumps (172-G-0001A).

172-TSB-0001A 172-G-0001A High High Temperature (Redundant) Stop the Diesel export pumps (172-G-0001A).

172-VSA-0001B 172-G-0001B High High Vibration (Main) Stop the Diesel export pumps (172-G-0001B).

172-VSB-0001B 172-G-0001B High High Vibration (Redundant) Stop the Diesel export pumps (172-G-0001B).

172-TSA-0001B 172-G-0001B High High Temperature (Main) Stop the Diesel export pumps (172-G-0001B).

172-TSB-0001B 172-G-0001B High High Temperature (Redundant) Stop the Diesel export pumps (172-G-0001B).

172-VSA-0001C 172-G-0001C High High Vibration (Main) Stop the Diesel export pumps (172-G-0001C).

172-VSB-0001C 172-G-0001C High High Vibration (Redundant) Stop the Diesel export pumps (172-G-0001C).





Tag No. Description Interlock Action 172-XSC-0099 (FF)

172-G-0001A suction valve close (FF Limit Switch) Stop the Diesel export pumps (172-G-0001A).

172-TSA-0001C 172-G-0001C High High Temperature (Main) Stop the Diesel export pumps (172-G-0001C).

172-TSB-0001C 172-G-0001C High High Temperature (Redundant) Stop the Diesel export pumps (172-G-0001C).

172-ZHS-0091D 15 m Remote Close 172-ZV-0091 Initiate an ESD: Stop the Diesel export circulation pump (172-G-0003).

172-ZXSC-0092 172-G-0003 discharge header valve close

Initiate an ESD: Stop the Diesel export circulation pump (172-G-0003).

172-ZHS-0092D 15 m Remote Close 172-ZV-0092 Initiate an ESD: Stop the Diesel export circulation pump (172-G-0003).

172-HS-0124A STOP Diesel Export Circulation Pump 172-G-0003 from DCS

Stop the Diesel export circulation pump (172-G-0003).

172-VSA-0003 172-G-0003 High High Vibration/Temperature (Main) Stop the Diesel export circulation pump (172-G-0003).

172-VSB-0003 172-G-0003 High High Vibration/Temperature (Redundant)


172-XSC-0122 (FF)

172-G-0003 suction valve close (FF Limit Switch)


172-XSC-0123 (FF)

172-G-0003 discharge valve close (FF Limit Switch)


Table 24 Diesel pumps shutdown signals





Gasoline storage tank

Tag no. Description Interlock Action

172-ZXSO-0259B 172-G-0002A/B/C suction header valve open (80% Open)

Initiate an ESD: Stop the gasoline export pumps (172-G-0002A/B/C).

172-ZXSC-0259 172-G-0002A/B/C suction header valve close


172-ZHS-0259D 15 m Remote Close 172-ZV-0259 Initiate an ESD: Stop the gasoline export pumps (172-G-0002A/B/C).

172-ZXSO-0260B 172-G-0002A/B/C discharge valve header open (80% Open)


172-ZXSC-0260 172-G-0002A/B/C discharge valve header close


172-ZHS-0260D 15 m Remote Close 172-ZV-0260 Initiate an ESD: Stop the gasoline export pumps (172-G-0002A/B/C).

172-HS-0252A Stop Gasoline Export Pump 172-G-0002A from DCS Stop the gasoline export pumps (172-G-0002A).

172-HS-0253A Stop Gasoline Export Pump 172-G-0002B from DCS Stop the gasoline export pumps (172-G-0002B).

172-HS-0254A STOP Gasoline Export Pump 172-G-0002C from DCS Stop the gasoline export pumps (172-G-0002C).

172-VSA-0002A 172-G-0002A High High Vibration (Main) Stop the gasoline export pumps (172-G-0002A).

172-VSB-0002A 172-G-0002A High High Vibration (Redundant) Stop the gasoline export pumps (172-G-0002A).

172-TSA-0002A 172-G-0002A High High Temperature (Main) Stop the gasoline export pumps (172-G-0002A).

172-TSB-0002A 172-G-0002A High High Temperature (Redundant) Stop the gasoline export pumps (172-G-0002A).

172-VSA-0002B 172-G-0002B High High Vibration (Main) Stop the gasoline export pumps (172-G-0002B).

172-VSB-0002B 172-G-0002B High High Vibration (Redundant) Stop the gasoline export pumps (172-G-0002B).

172-TSA-0002B 172-G-0002B High High Temperature (Main) Stop the gasoline export pumps (172-G-0002B).

172-TSB-0002B 172-G-0002B High High Temperature (Redundant) Stop the gasoline export pumps (172-G-0002B).

172-VSA-0002C 172-G-0002C High High Vibration (Main) Stop the gasoline export pumps (172-G-0002C).






172-VSB-0002C 172-G-0002C High High Vibration (Redundant) Stop the gasoline export pumps (172-G-0002C).

172-TSA-0002C 172-G-0002C High High Temperature (Main) Stop the gasoline export pumps (172-G-0002C).

172-TSB-0002C 172-G-0002C High High Temperature (Redundant) Stop the gasoline export pumps (172-G-0002C).

172-XSC-0261 (FF)

172-G-0002A suction valve close (FF Limit Switch)

Stop the gasoline export pumps (172-G-0002A).

172-XSC-0263 (FF)

172-G-0002B suction valve close (FF Limit Switch)

Stop the gasoline export pumps (172-G-0002B).

172-XSC-0265 (FF)

172-G-0002C suction valve close (FF Limit Switch)

Stop the gasoline export pumps (172-G-0002C).

172-ZXSC-0093 172-G-0005 suction header valve close

Initiate ESD: Stop the gasoline export circulation pump (172-G-0005).

172-ZHS-0093D 15 m Remote Close 172-ZV-0093 Initiate ESD: Stop the gasoline export circulation pump (172-G-0005).




172-HS-0286A STOP Diesel Export Circulation Pump 172-G-0005 from DCS

Stop the gasoline export circulation pump (172-G-0005).

172-VSA-0005 172-G-0005 High High Vibration/Temperature (Main) Stop the gasoline export circulation pump (172-G-0005).

172-VSB-0005 172-G-0005 High High Vibration/Temperature (Redundant)


172-XSC-0288 (FF)



172-XSC-0289 (FF)



172-ZXSC-0095 172-G-0006 suction header valve close











172-HS-0287A STOP Diesel Export Circulation Pump 172-G-0006 from DCS Stop the gasoline export circulation pump (172-G-0006).

172-VSA-0006 172-G-0006 High High Vibration/Temperature (Main) Stop the gasoline export circulation pump (172-G-0006).

172-VSB-0006 172-G-0006 High High Vibration/Temperature (Redundant) Stop the gasoline export circulation pump (172-G-0006).

172-XSC-0290 (FF)



172-XSC-0291 (FF)



Table 25 Gasoline pumps shutdown signals





Benzene Export Storage Tank

Table 26 Benzene pumps shutdown signals

Tag No. Description Interlock Action 172-ZXSC-0445 172-G-0011A/B suction header valve close

Initiate an ESD: Stop Benzene export pumps 172-G-0011A/B

172-ZHS-0445D 15 m Remote Close 172-ZV-0445 Initiate an ESD: Stop Benzene export pumps 172-G-0011A/B

172-ZXSC-0450 172-G-0011A/B discharge header valve close Initiate an ESD: Stop Benzene export pumps 172-G-0011A/B

172-ZHS-0450D 15 m Remote Close 172-ZV-0450 Initiate an ESD: Stop Benzene export pumps 172-G-0011A/B

172-HS-0491A STOP Benzene Export Pump 172-G-0011A from DCS Stop Benzene export pumps 172-G-0011A

172-HS-0492A STOP Benzene Export Pump 172-G-0011B from DCS Stop Benzene export pumps 172-G-0011B

172-VSA-0011A 172-G-0011A High High Vibration/Temperature (Main) Stop Benzene export pumps 172-G-0011A

172-VSB-0011A 172-G-0011A High High Vibration/Temperature (Redundant)

Stop Benzene export pumps 172-G-0011A

172-VSA-0011B 172-G-0011B High High Vibration/Temperature (Main) Stop Benzene export pumps 172-G-0011B

172-VSB-0011B 142- G-0002Bstop from DCS Stop Benzene export pumps 172-G-0011B

172-XSC-0475 (FF)

172-G-0011A suction valve close (FF Limit Switch) Stop Benzene export pumps 172-G-0011A

172-XSC-0480 (FF)

172-G-0011A discharge valve close (FF Limit Switch) Stop Benzene export pumps 172-G-0011A

172-XSC-0490 (FF)

172-G-0011B suction valve close (FF Limit Switch) Stop Benzene export pumps 172-G-0011B

172-XSC-0485 (FF)

172-G-0011B discharge valve close (FF Limit Switch) Stop Benzene export pumps 172-G-0011B





3.0 200 LOSS OF UTILITIES

201 Power Outage with Emergency Generator On Each substation 12 and 13 are feed from 34.5 KV normal feeders through substation 4 and substation 2 respectively and one emergency feeder through substation 15 (SP4 contractor). During normal operation all normal loads are feed from normal supply and all essential loads are fed from emergency supply where emergency diesel generators are working continuously. Power outage with emergency generator on, Electrical power shall be lost for normal loads & essential loads shall be still fed from emergency feeder.

202 Power Outage with Emergency Generator Out of Service Electrical power shall be lost for normal & essential loads except for critical loads fed from AC UPS shall have back up batteries for 15 minutes & loads fed from battery charger shall have back up batteries for 2 hours. These back up batteries shall be utilized for safe shutdown of the plant.

203 Instrument Air Failure 204 Instrument Electrical Failure

Below table indicates control valves fail action based on air and electrical failure

Table 27 control valves fail action

Control valve tag Fail action (air failure) Fail action (electric failure)

142-PCV-0032A FO FO

142-PCV -0532A FO FO

142-PCV-0032B FO FO

142-PCV-0532B FO FO

143-FCV -0043 FO FO

143-FCV -0044 FO FO

143-FCV -0045 FO FO

143-FCV -0090 FO FO

143-FCV -0096 FO FO

143-FCV -0133 FO FO

143-FCV -0160 FO FO






143-FCV -0161 FO FO

143-FCV -0162 FO FO

143-FCV -0163 FO FO

143-FCV -0180 FO FO

143-FCV -0220 FO FO

143-FCV -0221 FO FO

143-FCV -0222 FO FO

143-FCV -0227 FO FO

143-FCV -0240 FO FO

143-FCV -0270 FO FO

43-FCV -0358 FO FO

143-FCV -0359 FC FC

143-FCV -0390 FO FO

143-FCV -0419 FO FO

143-FCV -0429 FO FO

143-FCV -0452 FO FO

143-FCV -0453 FO FO

143-FCV -0498A FO FO

143-FCV -0498B FO FO

143-FCV -0498C FO FO

143-FCV -0553 FO FO

143-FCV -0630 FO FO

143-FCV -0631 FO FO

143-FCV -0670 FO FO

143-FCV -0742 FO FO

143-FCV -0745 FO FO






143-FCV -0747 FO FO

143-FCV -0801 FO FO

143-FCV -0806 FO FO

14:1-FCV -0807 FO FO

143-FCV -0808 FO FO

143-FCV -0888 FO FO

143-FCV -0908 FO FO

143-FCV -0919 FO FO

143-FCV -0920 FO FO

143-FCV -0921 FO FO

143-FCV -0966 FO FO

143-LCV -0603 FLC FC

143-LCV -0997 FC FC


143-PCV -0116B FO FO





143-PCV -0181 FC FC

143-PCV -0241 FO FO

143-PCV -0271 FC FC

143-PCV -0430 FC FC

143-PCV -0450 FO FO












143-PCV -0550 FC FC

143-PCV -0608 FC FC

143-PCV -0633 FC FC

143-PCV -0706 FO FO

143-PCV -0707 FO FO

143-PCV -0708 FO FO

143-PCV -0820 FO FO

143-PCV -0821 FO FO

143-PCV -0822 FO FO

143-PCV -0850 FO FO

143-PCV -0851 FO FO



143-PCV -0909 FC FC

143-TCV -0605 FC FC

157-FCV -0007A FC FC

157-FCV -0007B FC FC





157-FCV -0046 FC FC










172-FCV -0091 FO FO

172-FCV -0092 FO FO

172-FCV -0093 FO FO

172-FCV -0255 FO FO

172-FCV -0256 FO FO

172-FCV -0257 FO FO

172-FCV -0440 FO FO

143-PCV-0576 FC FC

Table 28 control valves fail action Below table indicates shutdown valves fail action based on air failure

Tag Number Fail action (air failure) Fail action (electric failure)

142-ZV-0056 FC FC

142-ZV -0057 FC FC

142-ZV -0552 FC FC

142-ZV -0553 FC FC

143-ZV -0107 FC FC

143-ZV -0108 FC FC

143-ZV -0400 FC FC

143-ZV -0401 FC FC

143-ZV -0402 FC FC

143-ZV -0403 FC FC






143-ZV -0404 FC FC

143-ZV -0424 FC FC

143-ZV -0425 FC FC

143-ZV -0445 FC FC

143-ZV -0448 FC FC

143-ZV -0470 FC FC

143-ZV -0471 FC FC

143-ZV -0472 FC FC

143-ZV -0473 FC FC

143-ZV -0474 FC FC

143-ZV -0476 FC FC

143-ZV -0477 FC FC

143-ZV -0478 FC FC

143-ZV -0479 FC FC

143-ZV -0496 FC FC

143-ZV -0497 FC FC

143-ZV -0498 FC FC

143-ZV -0503 FC FC

143-ZV -0504 FC FC

143-ZV -0505 FC FC

143-ZV -0506 FC FC

143-ZV -0507 FC FC

143-ZV -0508 FC FC

143-ZV -0509 FC FC

143-ZV -0510 FC FC

143-ZV -0511 FC FC






143-ZV -0530 FC FC

143-ZV -0533 FC FC

143-ZV -0540 FC FC

143-ZV -0542 FC FC

143-ZV -0557 FC FC

143-ZV -0562 FC FC

143-ZV -0572 FC FC

143-ZV -0575 FC FC

143-ZV -0585 FC FC

143-ZV -0588 FC FC

143-ZV -0600 FC FC

143-ZV -0610 FC FC

143-ZV -0616 FC FC

143-ZV -0620 FC FC

143-ZV -0623 FC FC

143-ZV -0636 FC FC

143-ZV -0637 FC FC

143-ZV -0638 FC FC

143-ZV -0660 FC FC

143-ZV -0663 FC FC

143-ZV -0700 FC FC

143-ZV -0701 FC FC

143-ZV -0702 FC FC

143-ZV -0703 FC FC

143-ZV -0704 FC FC

143-ZV -0705 FC FC






143-ZV -0706 FC FC

143-ZV -0707 FC FC

143-ZV -0708 FC FC

143-ZV -0709 FC FC

143-ZV -0748 FC FC

143-ZV -0749 FC FC

143-ZV -0752 FC FC

143-ZV -0753 FC FC

143-ZV -0754 FC FC

143-ZV -0756 FC FC

143-ZV -0757 FC FC

143-ZV -0785 FC FC

143-ZV -0819 FC FC

143-ZV -0841 FC FC

143-ZV -0842 FC FC

143-ZV -0843 FC FC

143-ZV -0844 FC FC

143-ZV -0845 FC FC

143-ZV -0846 FC FC

143-ZV -0847 FC FC

143-ZV -0848 FC FC

143-ZV -0849 FC FC

143-ZV -0850 FC FC

143-ZV -0851 FC FC

143-ZV -0864 FC FC

143-ZV -0865 FC FC






143-ZV -0866 FC FC

143-ZV -0867 FC FC

143-ZV -0868 FC FC

143-ZV -0869 FC FC

143-ZV -0880 FC FC

143-ZV -0881 FC FC

143-ZV -0887 FC FC

143-ZV -0913 FC FC

143-ZV -0914 FC FC

143-ZV -0915 FC FC

143-ZV -0916 FC FC

143-ZV -0917 FC FC

143-ZV -0918 FC FC

143-ZV -0919 FC FC

143-ZV -0920 FC FC

143-ZV -0921 FC FC

143-ZV -0925 FC FC

172-ZV -0090 FC FC

172-ZV -0091 FC FC

172-ZV -0092 FC FC

172-ZV -0093 FC FC

172-ZV -0094 FC FC

172-ZV -0095 FC FC

172-ZV -0096 FC FC

172-ZV -0099 FC FC

172-ZV -0259 FC FC






172-ZV -0260 FC FC

172-ZV -0445 FC FC

172-ZV -0450 FC FC

Table 29 Shutdown valves fail action 205 Loss of Cooling Water

SP1 uses of cooling water are limited to pumps cooling, the below is the list of pumps that utilize cooling water:

1. 143-G-0015A, refer to table 16 for propane shutdown signals.

2. 172-G-0001A/B/C, refer to table 24 for diesel shutdown signals.

3. 172-G-0002A/B/C, refer to table 25 for gasoline shutdown signals.

SP1 receive cooling water from SP4, any emergency cases shall be handled by SP4.

206 Loss of MP Steam SP1 uses of MP steam in the following:

1. Steam tracing for DCU lines.

2. Steam turbine for pump 143-G-0015A

3. Steam for controtrace of sulfur lines and for tanks heating system. A temperature high, low alarms 143-TAH-0605 & 143-TAL-0605 are provided to warn the operator from high or low temperature of steam used for sulfur system.

Also a pressure high and low alarms 143-PAH-0608 &143-PAL-0608 are provided to warn the operator from high pressure of steam used for sulfur system.

4.0 300 LOSS OF CRITICAL SYSTEMS/COMPONENTS

302 Loss of Makeup Make up loss will occur only in caustic scrubber package

As the caustic solution reacts with the H2S gas, the pH of the caustic solution will

begin to drop. The Caustic control valve 143-ACV-0100 will modulate continuously to

add fresh make-up caustic to the Caustic Circulating Drum in order to maintain a

constant pH.





Based on 4000 ppmW inlet H2S loading from each Vacuum Residue Tank, the

minimum theoretical 20% make up caustic rate will normally be about 0.084 gpm

total, while both Vacuum Residue Tanks are venting. The minimum caustic

concentration in the recycle liquid should not fall below 0.5% (equivalent to pH 13.1)

During normal operation, the Circulating Caustic pH should be maintained above

12.5. The intermediate product - NaHS - can gas off a rotten egg odor if pH falls

below 12.5.

CAUTION: It is critical that the Na2S concentration in the liquid shall not exceed 5 wt% to minimize precipitation.

NOTE: operator should periodically analyze the recycle solution for Na2S content, to ensure it does not exceed the 5 w% Na2S in solution.

If, however, the Na2S concentration does increase, then the tank will need to be

manually purged or dumped and refilled with fresh caustic solution.

Also Make-up water is added to caustic scrubber drum 143-D-0098 on level control

to compensate for water loss due to purge from the oil skimmer and evaporation.

The normal make-up water rate is expected to be about 0.5 gpm (minimum purge

rate to maintain less than 5 wt% Na2S, plus water loss in exhaust gas due to

evaporation). However, water will be lost with the skimmed oil, hence the make-up

water level control valve (143-LCV-0002) is sized to accommodate a higher inlet

make up water flow rate (2-5 gpm).





5.0 400 UNUSUAL OCCURRENCES

403 Fire Near High Pressure Equipment Foam Protection System

Foam protection system will be installed on all Open Floating roof tanks storing flammable liquids. Foam system shall be provided for rim-seal fire protection. Foam system shall be capable of controlling and extinguishing the largest single rim-seal fire.

The foam system will comprise the piping, fittings, valves and equipment that provides foam to the protected tank and notification of plant personnel of such an event though MAC,horn and speakers shall be activated. The purpose of foam system will be to extinguish fires in the rim-seal area of a floating roof storage tank located in the YERP facilities.

Each protected tank will have permanently installed foam pourers specifically designed for rim-seal application. These devices will be designed per NFPA 11 and YERP-SEAS-B-018.

The foam pourer assembly complete with foam ring supply and foam riser will be included in scope the tank manufacture

Semi-fixed system shall be utilized. Sufficient valved hose connections (hose manifold) shall be provided and connected to foam fire truck.

The foam concentration shall be designed for 3% ARAFFF proportioning. The foam truck will be availed by client

(See table 29) for list of protected tanks with associated number of hose connections, number of foam chambers, foam demand and water demand.

(See Dwg. 160-SP1-PE-PID-0018, 0019, 0020,0021, 0022, 0023, 0024, 0025,0026 for Foam system)





Item Service Dia (m)

Foam application

rate (l/min/m2)

Foam solution (l/min)

No. of foam

pourer

No. of hose

connect ions

Water demand (l/min)

143-D-0001 CRUDE OIL TANK (FROM

YCOT)

110 20.4 4205 15 5 4079

143-D-0002 CRUDE OIL TANK (FROM

YCOT)

110 20.4 4205 15 5 4079

143-D-0003 NHT FEED TANK (SGP NAPHTHA)

74.5 20.4 2841 10 4 2756

143-D-0007 DHT FEED TANK

(KEROAND DIESEL)

102.5 20.4 3917 14 5 3800

143-D-0009 HCK FEED TANK

(AGO/VGO)

109 20.4 4167 15 5 4042

143-D-0016 REFORMATE STORAGE

TANK

45 20.4 1707 6 2 1656

143-D-0017 REFORMATE STORAGE

TANK

45 20.4 1707 6 2 1656

172-D-0005 GASOLINE EXPORT

TANK

88 20.4 3360 12 4 3260


TANK

88 20.4 3360 12 4 3260


TANK

88 20.4 3360 12 4 3260

Table 30 Floating roof protected by foam system





Fixed Water Deluge System

Fixed water deluge system shall be provided to protect spheres and spheroids containing flammable liquids. The minimum protected area for spheres and spheroids shall be the surface area above the maximum diameter of the vessel tank. Where liquid level is under normal operating conditions but is below the maximum diameter of the vessel/tank, the protected area shall include the surface area between the top of the vessel/tank and normal liquid level. In this case, a ring of water sprays shall be added to protect the area of the shell that is not wetted by the spray system due to interference by the legs.The minimum protected area for hemispheroids shall be the roof area.

Design of the fire water deluge system shall follow requirements of YERP-SAESB-017 Total calculated flow rate should not exceed 238.2 m3/hr (1048 GPM).

The deluge valves shall be skid mounted and installed in a readily accessible position, with access from the plant road and at least 15m from the protected item.

System shall be activated automatically and manually as follows:

1- Automatic through fusible link.

2- Remote Manually through push buttons located in CCB room

3- Manually from manual valve located on deluge skid.

4- Manually through pneumatic manual valve located near to deluge skid

5- Remote DCS soft switch.

Actuation of the deluge skids shall be as per control system /instrumentation design basis doc.no. 100-YER-PE-PDB-0001

Branch piping to spray heads shall be connected on the top of the distribution piping or supply ring to minimize clogging of the heads.

(See table #30 for list of protected items with associated number of deluge valve sizes, application rates and water demand





Item Service Dia (m) Water deluge

application rate (l/min/m2)

Water deluge

flow rate (l/min)

Deluge valve size

(in)

143-D-0024 Propane sphere 20 10.2 3970 6

143-D-0025 Propane sphere 20 10.2 3970 6

143-D-0026 Propane sphere 20 10.2 3970 6

143-D-0027 Mixed Butane 20 10.2 3970 6

143-D-0028 Mixed Butane 20 10.2 3970 6

143-D-0029 Mixed Butane 20 10.2 3970 6

143-D-0030 Mixed Butane 20 10.2 3970 6

143-D-0031 Coker LPG/Mixed butane

20 10.2 3970 6

143-D-0032 Mixed Butane 20 10.2 3970 6

143-D-0014 Isomerate and CCR light reformate

88 10.2 9060 8

143-D-0015 Isomerate and CCR light reformate

33.94 10.2 9060 8

143-D-0044 NHT light naphtha

33.94 10.2 9060 8

143-D-0047 Light slop tank 31 10.2 7360 8

Table 31 spheres and spheroids protected by water deluge system





Fire and gas emergency

Sphere 143-D-0024 fire fighting Tag No. Description Interlock Action

143-PIT-1140 Heat detection Initiate an alarm : Open deluge valve 143-ZXV-0975 for sphere 143-D-0024

143-HS-1000 Deluge hand switch located in CCR

Initiate an alarm : Open deluge valve 143-ZXV-0975 for sphere 143-D-0024














esd system operation

Documents

nht pumps shutdown signals

butane pumps shutdown

crude pumps shutdown

dcu pumps shutdown signals

dht pumps shutdown signals

hck pumps shutdown signals

propane pumps shutdown

slop pumps shutdown