FULL BENZOLE SYSTEM

Level Control

3.OIL TO VAPOURS 2E401/2.

4.OIL TO OILS 1/2E414.

5.FINAL HEATERS 2E403/4.

6.VAPOUR BOX.2G402

7.BZ STILL 120°c

90°c

11. Lean oil in.(27°c).

1/2P406

1/2P405

1/2P404

1/2P401

1/2P401

1/2P402

1/2P407 1/2P4081/2P409

10.Circulation Tank

9.CREOSOTE COOLERS.1/2E405/6/7/80P409/10.

2P410

Cooling Water in

Cooling water out

2P412

20°c 82°c

18.CONDENSER 17.DEPHLEGMATOR

19.TALLBOY 20.BZ SEPERATOR

22.BENZOLE RECIEVER

21.PHLEGM OIL

1P414OP415/6

1/2T410

23.BENZOLE STORAGE

24.TO OUTLOADING

CONDENSATE TO 0T415 TANK

MP STEAM 10.5 BarHEATING COIL

2P424

TO 0T412SLUDGE TANK

2P414

30°c

12.PURIFIER

LP STEAM 1.1Bar

13.Xmas tree

1/2c401

1. BZ WASHER

.STR

IPPE

D O

IL

14.PHLEGM OIL FOW

15.OIL BLEED FROM STILL

16.REFLUXED LIGHT ENDS

1T4042T404

170°c.

108°c

8.WEIRWEIR

2C4042G401

0G403

2E412/1E4112E411/1E412

2LIC-407LEVEL CONTROL

0P435

1/2C402

2. BZ WASHER

1/2405

2C403

BENZOLE STILL HAS 14 BUBBLE TRAYS

1/2LIC-404LEVEL CONTROL

RICH OIL TEMP IN 28°c

RICH OIL TEMP OUT FROM 1/2c401.( 29°c).

LEVEL CONTROL 1/2LIC-406

FLOW CONTROL 1/2FIC-404

2LIC-409

FLOW CONTROL 2FI-405

1/2P407Transfer

1/2P408Transfer

1/2P406Re-circulation

Pump

1/2P405Re-circulation

Pump

1/2P404 Re-circulation Pump

1/2P401Re-circulation

Pump

1/2P402Re-circulation

Pump

1/2P403 Re-circulation

Pump

LevelControl

LevelControl

Gas fromAmmonia

Washers 27°c

BENZOLE SCRUBBERS OIL AND GAS FLOWS

COKE OVEN GASS TO THE

BOOSTERS 29°c

2 5

31/2C402 1/2C401

Lean oil flow control

Transfer1/2P409

CAN OPERATE FOR EITHER 1/2P407/8

1.2.

1. 1C402 SCRUBBER2. 1C401 SCRUBBER3. LEAN OIL FLOW 4. RICH OIL FLOW

RICH OIL TO STILL

Gas from 1c401. 28°c

1C402 1C401

28°c

GAS OUT

BENZOLE RICH OIL FLOW

1/2P401

1/2P402

1/2P403

1/2P408

Level Control

LEAN OIL IN 29°c

1C401 SCRUBBER.

2P410

Level Control

1.

2.

3.

4.

5.

6.

1. 1C401 SCRUBBER.2. OIL TO VAPOURS.3. OIL TO OILS.4. FINAL HEATERS.5. VAPOUR BOX.6. 2C403 BZ STILL.7. RICH OIL FLOW.8. LEAN OIL FLOW.

BENZOLE STILL HAS 14 BUBBLE TRAYS

OIL TO VAPOURS.

OIL TO OILS.

FINAL HEATERS.

VAPOUR BOX.

2C403 BZ STILL

Re-circulation Pump

Re-circulation Pump

Re-circulation Pump

VAPOUR EXITS AT APPROX 108°c.

120°c

To oil to oils

90°c

110°c

28°c

BENZOLE VAPOUR RECOVERY

1.

2

3. 4.

5.6.

7.8.

9.

2P414

1P414OP415/6

TO OUTLOADING

1. BENZOLE STILL 2C403.2. OIL TO VAPOURS.3. CONDENSOR.4. DEPHLEGMATOR.5. TALL BOY.6. BENZOLE SEPERATOR.7. PHLEGM OIL TANK.8. BENZOLE RECIEVER.9. BENZOLE STORAGE TANK

1/2T405.10. VAPOUR FLOW.11. PHLEGM OIL/CONDY.12. PHLEGM OIL.13. BENZOLE/CONDY.14. BENZOLE. 15. COOLING WATER.16. CONDENSATE.

20°c 82°c

COOLING WATER IN

COOLING WATER OUT

COOLING WATER IN

COOLING WATER OUT

1/2T410

VAPOUR EXITS AT APPROX 107/8°c.

BENZOLE STILL HAS 14 BUBBLE TRAYS

BENZOLE STILL

OIL TO VAPOURS

OIL TO VAPOURS

CONDENSER DEPHLEGMATOR

BZ SEPERATOR

TALLBOY

BENZOLE RECIEVER

PHLEGM OIL

BENZOLE STORAGE 2C403

Condensate to 0T415

90°c

Cooling Water in

Cooling water out

Creosote coolers

Circulation Tank

2P412

Flowcontroller

1/2C402scrubber

Oil to oil heatexchangers

Levelcontrol

2P410

2.3.

4.

5.

BENZOLE LEAN OIL FLOW

1. 1. 2C403 BZ STILL.2. OIL TO OILS.3. CREOSOTE COOLERS.4. 1/2T405.5. 1/2C402 SCRUBBER.6. LEAN OIL FLOW.

1/2T405.

2C403 BZ STILL.

BENZOLE STILL HAS 14 BUBBLE TRAYS

2P411CAN OPERATE FOR EITHER 2P410/12

30°c

PURIFIER AND STILL SET UP

2C403 BZ STILL.

PURIFIER

4. LP STEAM 1.1 Bar

6. RICH OIL IN

VAPOUR OUT

5. MP STEAM 10.5 BarHEATING COIL

2P424

8. TO 0T412SLUDGE TANK

1.

2.

3.

1. VAPOUR BOX.

2. 2C403 BZ STILL.

3. 2C404 PURIFIER.

4. LP STEAM. 1.1 Bar

5. MP STEAM.

6. RICH OIL.

7. XMAS TREE.

8. HEAVY ENDS. 7. XMAS TREE

Level Control

BENZOLE STILL HAS 14 BUBBLE TRAYS

2C404

VAPOUR BOX

120°c

170°c

108°c

3. ODT

2.Seal pot

MainNaphthalene

Washer

1

Demister pad

17.Heating coil LP 1.1Bar

1/2p202

1/2p201

1/2P215COMMON PUMP

000000

8866

SEPERATOR 0G202

NAPTHALENE STORAGE TANK 0T204 40°c

18.Heating coilLP 1.1Bar.

Oc202 NAPHTHALENE STILL

CONDENSOR.40°c 0E202

120°c

TO BENZOLE PRODUCT TANK

CONDENSATE TO 0T415.7 BUBBLE

TRAYS

7 BUBBLE TRAYS

14.TO 0T412 SLUDGE TANK115°c1/2P211, 0P212 8.LEAN OIL TO MAIN

NAPHTHALENE WASHER

19.Cooling watercoil

Divide tank 0T203

FULL NAPHTHALENE SYSTEM

5.

6.

12.

10

7.

9.

11

13

15.

16.

MAIN HEATER.MP STEAM 140°c0E201

4. RICH OIL FROM MAIN NAPHTHALENE WASHERS. 42°c

22.

21. GAS TO AMMONIA WASHERS 43°c

23.LP STEAM 1.1Bar

120oc

45oc

COOLING WATER IN.

COOLING WATER OUT.

2P424

GAS IN FROM DETARRERS 38-40°c

LEVEL CONTROL

MP STEAM 10.5 BarCONTROL VALVE

FLOW CONTROL

FLOW CONTROL

0P218

0C202

1/2T201

LEVEL CONTROL

1. 1/2C201 NAPHTHALENE WASHER.

2. SEAL POT.

3. OIL DECANTER TANK.

4. DEWATERING POINT.

GAS FLOW.

OIL FLOW.

LEAN OIL.

RICH OIL.

Seal pot

MainNaphthalene

Washer1/2P202

6. Petroleum oilcirculation

1/2P201petroleum oil

circulation

5. Gas in fromdetarrer,s

10.Gas to ammoniawashers

1

24

Demister pad

9. Heating coil LP 1.1Bar

MAIN NAPHTHALENE WASHER FLOWS

7. LEAN OIL FROM DIVIDE TANK

8. RICH OIL TO STILL

Aim is 1-2°c higher than entry temperature

OIL DECANTER TANK

1/2T201

3

.Dewatering point

1/2p215Operates for either1/2p201/2

4

1/2P211, 0P212

Divide tank

MP steam 10.5 BAR

Temperature control Valve

140 °C

1.

2.

3.

Naphthalene vapour

Condensate to fire fighting pump house heating

Cooling watercoil

5. LEAN OIL TO MAIN NAPHTHALENE WASHER

4. RICH OIL FROM MAIN NAPHTHALENE WASHERS. 42°c

NAPHTHALENE STILL 0C202 OIL FLOWS

1. 0C202 NAPHTHALENE STILL2. DIVIDE TANK.3. MAIN HEATER. 140°c4. RICH OIL FLOW5. LEAN OIL FLOW

0C202

NAPHTHALENE STILL

MAIN HEATER. 140°c

120°c

115°c

120°c

7 BUBBLE TRAYS

7 BUBBLE TRAYS

NAPHTHALENE VAPOUR FLOW

column

1

1.NAPHTHALENE STILL

7. Naphthalene vapour

000000

8866

CONDENSOR . 40°c5.

2.3.

6.

1. 0C202 NAPHTHALENE STILL2. KNOCKOUT POT.3. CONDENSOR.4. ADJUSTABLE WEIR.5. SEPERATOR.6. NAPTHALENE STORAGE TANK.7. VAPOUR FLOW.8. REFLUX LINE.9. LOW PRESSURE STEAM.1.1bar.10. HEATING COIL.11. CONDENSATE/NAP OIL.12. NAPHTHALENE OIL.13. CONDENSATE.

4

8.

9. LP STEAM 1.1 Bar

10.Heating coil.

11.

TO 0T412 SLUDGE TANK

TO BENZOLE PRODUCT TANK

13. CONDENSATE TO 0T415.

NAPTHALENE STORAGE TANK 0T204

SEPERATOR 0G202

0C202

40°c

7 BUBBLE TRAYS

7 BUBBLE TRAYS

120°c

LIQUID REFLUXED BACK INTO THE STILL

0P205/6

1/2p311/2

1/2p314/5

To lime sump

GAS TO BENZOLE WASHERS 27°c

COOLING WATER IN

COOLING WATER OUT

VAPOUR OUT

DEPHLEGMATOR 1/2E304

85°c

Heat exchangers1/2e306

PLATE COOLER 1/2E308

TO INCINERATOR 1/2F301

1/2T301

1/2C302 1/2C301

GAS FROM NAPHTHALENE WASHERS 40 °c

1/2337

1/2P303

1/2P302

1/2P301/7

1/2P3081/2P309

1/2P310COMMON PUMP

1/2P319

GAS OUT 28°C

COOLING WATER IN

SECONDARYCOOLERS

KNOCKOUT POT

AMMONIA STRONG LIQUOR FLOW

1/2p306

1/2p304

1/2p305

LEVEL CONTROL

STRONG LIQUOR STORAGE

AMMONIA STILL

1/2C303

LEVEL CONTROL

18m³/HR. 1c302

18m³/HR.2c302

INTO SUCTIONOF 1/2P306

LEVEL CONTROL

FLOW CONTROL 40m³/HR.

1/2T305

STRONG LIQUOR TANKS 1/2t301

1.

2.

1.

3.

1.

6.

5.

4.

10.

8.

7.

9.

11.

12.

13.

14.

15 VALVE TRAYS

15.

1/2p306

1/2p305

1/2p304

1/2p337

1/2p307

1/2p302

1/2p303

AMMONIA SCRUBBERS

1/2P308

1/2P310

1/2P309

TO 1/2T301

GAS FROM MAIN NAP WASHERS 40°

GAS TO BENZOLE SCRUBBERS 27°c

1/2c302

1/2c301

FROM 1/2C303

28°c

SECONDARYCOOLERS

LEVELCONTROL

LEVELCONTROL

FLOWCONTROL

1/2C303 FREE STILL STRONG LIQUOR FLOW

DEPLEGMATOR 85°c

K/O POT

1/2C303

15 VALVE TRAYS

HEAT EXCHANGERS 1/2E306

COOLING WATER IN

PLATE COOLERS 1/2E308

COOLING WATER OUT COOLING WATER IN

COOLING WATER OUT

18m³/HR STRIPPED LIQUORTO 1C302

18m³/HR STRIPPED LIQUORTO 2C302

1/2T301 STRONG LIQUOR STORAGE

40m³/HR STRONG LIQUORTO 1/2C303

40m³/HR STRONG LIQUOR

36m³/HR STRIPPED LIQUOR OUT

VAPOUR TO 1/2F301 INCINERATOR

REFLUX LINE

LP STEAM IN. 1.1Bar

APPROX 4m³/HR STRIPPED LIQUOR TO LIME SUMP

1/2P319

1/2p314/5

1/2p311/2

1/2C304 AND 0C305 FIXED AND FREE STILLS

LP STEAM 1.1 Bar

FIXED SECTION

FREE SECTION

CAUSTIC IN

FIXED AMMONIA

VIRGIN LIQUOR INVIRGIN LIQUOR INCAUSTIC IN

VAPOUR OUTTO 1/2F301INCINERATOR

VAPOUR OUT TO 1/2F301INCINERATOR

STRIPPED LIQUOR TO LIME SUMP

STRIPPED LIQUOR TO LIME SUMP

8 BUBBLE TRAYS

9 BUBBLE TRAYS

0C305 1/2C304

LP STEAM 1.1 Bar

19 VALVE TRAYS

BLEED TO ANALYSERS

0C305 FIXED AND FREE STILL FLOWS

COOLING WATER IN

COOLING WATER OUT

VAPOUR TO 1/2F301 INCINERATOR

K/O POT

REFLUX LINE

LP STEAM 1.1 Bar

LEVELCONTROL STRIPPED LIQUOR

TO LIME SUMP

BLEED TO ANALYSERS

DEPLEGMATOR 85°c

0C305

0/1/2T105, 0T112VIRGIN LIQUOR STORAGE

TRANSFER PUMPS0P126,1/2P117,1/2P312

CAUSTIC PUMP

CAUSTIC TANK 0T312/3 +30°c HEATING COIL

LP 1.1Bar

CAUSTIC FROM TANKER OFFLOADING POINT

TAR AND LIQUOR FLOWS

0T112VIRGIN LIQUOR

DOWNCOMER

SPIRAL COOLER LIQUOR FLOW

BIOLOGICAL EFFLUENT PLANT

SLUDGETORECYCLE

SLUDGETORECYCLE

INSTRUMENTS ON PLANT

INSTRUMENT AIR

BY-PRODUCTS PLANT EQUIPMENT

PLATE COOLER 1E308

Hot liquor in

Cooled liquor out

Cold waterIn from coolingtower

Hot waterout to coolingtower

SPIRAL SECONDARY COOLER

HOT IN FROM 1/2P301/7

COLD IN FROM COOLING TOWER

TO 1/2C302

COOLED LIQUOR OUT

HEATED WATER OUT TO COOLING TOWER

SHELL AND TUBE HEAT EXCHANGER

Vapour InVapour Out

COOLING Water Out

Product Out

COOLING Water In

End Views 4 Pass Tube and Shell

1.

4.

2.

Flange Flange

Dividers

Dividers3.

Tubes

chandelier

InsulatorTurrets (3 of)

Vent

Gas seal pot

To 0A102low level sump

1

6

TOP FLUSH

BOTTOM FLUSH

Gas In From Exhauster 30°c

Gas out to main Naphthalene washer 40°c

Flow Control Valve

Flow Control Valve

Tar Loaded Coke Oven Gas

Nitrogen In

HV Rectifier

Power InFlushing Liquor

Turret temperature maintained between 30°c and 70°c

1V101 AND 2V102 DETARRERS

Electrode wires

Tension Weights

DETARRED INTERNAL VIEW OF CHANDELIER

DETARRER CASING

CHANDELIER WIRES

TENSION WEIGHTS

139 HEXAGONAL TUBES ENCORPORATING ELECTRODE WIRE

ELECTRODE WIRE FROM CHANDELIER

PRIMARY COOLERS 1/2C101/2

8 No tar spraysOnly 4 in service At any time

9 No Liquor Sprays

9 No Liquor Sprays

Liquor In

Liquor In

Liquor Out

Liquor Out

1p103/2p101

Spiral Coolers

1/2p102

1/2p112

Gas In

Tar In 5m³/hr.

Gas Out

Common Standby1p101/2p119

Low Level Sump

Tar & LiquorDecanters

Desludging Point

Rodding Point

Syphon Breaker

Overflow

Gas In

726m³/HR.

28oC

From

downcomer

(all units)

From primary

coolers

(all units)

From low level

sump 0A102

Spiral coolers hot flush

discharge line

(1 & 3 only

Sludge scraper

Tar weir

Liquor

overflow

Sludge skip

Chute

Baffles

To 1/2T102

pump tank

To 0T104/111

Liquor receiving

tank

TAR & LIQUOR DECANTERS

Xmastree

Desired tar level

SLUDGE SKIP EMPTIED INTO TAR POND ROT

To Tar Storage

Excess Liquor to 0,1,2T105/ 0T112 Virgin Tanks

1/2p121/2

Gas Booster 1/2B501/0B502

Electric Motor

Fluid Coupling Oil Filter

Aux. LubePump/Motor

Lube OilCooler

GasInlet

Outlet

Booster GearBox

Fluid Coupling

Motor

Speed Control Unit FLUID DRIVE

Heaters &Thermostats

Water

Oil FiltersInstrumentPanel

Auxiliary oil pump pressure 2.2 barg

Auxiliary oil pump stops & main pump takes over at 2.75 barg

Auxiliary oil pump restarts at 2.15 barg

Oil temperature trip set at 10 DegC

AUTO / MANUAL

HP STEAM TURBINE 17.5Bar COUPLING

COKE OVEN GAS TURBINE

GOVENOR

AUTO/ MANUAL STATION .CONTROL PANEL

OIL TANK

HP STEAM 17.5Bar IN

LP STEAM 1.1Bar OUT

HP STEAM GAS EXHAUSTER.

1.Auxiliary oil pump cuts out at approximately 4.9 barg

2.Auxiliary oil pump cuts in at approximately 4.2 barg

3.Auxiliary oil pump outlet pressure is approx 4.4 barg

4.Main oil pressure is 5.3 barg

5.Lube oil pressure is 2.0 barg

6.Bearing oil pressure is7.Low oil pressure trip is

1.2 barg0.9 barg

TYPES OF PUMP ON PLANT

CENTRIFUGAL PUMP

ELECTRIC MOTOR PUMP SECTION

DRIVE SHAFT

CASINGPOWER SUPPLY

BED PLATE

POSITIVE DISPLACEMENT/ RECIPROCATING PUMP

BASIC BALL VALVE

1.

2.

3.

4.

5.

6.

8.

7.

GATE VALVE

BOLTS

BLAGDON PUMP

1

2.

3.4.

5.9.

7.

6.

8. 9.10.

11.

12.

BUTTERFLY VALVE

ATEX CERTIFIEDELECTRIC MOTOR HELICAL

CASINGDISK

STEMPINION SPRING PACK

POWER IN

TORQUE SWITCHDRIVE SLEEVE

WORM YOKE

FLANGE

AUTOMATIC CONTROL VALVE

RETURN SPRING

DIAPHRAGM

ACTUATOR STOP

STEM

AIR INLET FROM POSITIONER

RETURN SPRING

STEM SEALS

CONTROLLER SIGNAL

ACTUATOR STOP

COMPRESSED AIR SUPPLY

PNEUMATIC CONTROL VALVE

BUTTERFLY VALVE

FLANGE

AMMONIA STILL HINDLE VALVE

Pivot Point

Open Solid

Hindle valve in online position.

Vapour pipework

Spectacle section of hindle

Locking nut

GAS HOLDER SEALANT PUMP TANK