woodfibre lng project

Matthias Schmidt

Vancouver, September 2014

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Woodfibre LNG Project

2 Linde AG Engineering Division

Project Overview

Owner: Woodfibre LNG

Plant Capacity: 2.1 MTPA LNG

Feed Gas: Canadian pipeline quality

Planned Start-up: 2017

Site: Former Woodfibre pulp mill near Squamish

LNG Technology: Linde's LIMUM

Key Decisions: All electric drive

Sea Water Cooling


Technology Selection Process

Linde was selected as Technology Provider competing against other world-class

LNG Technology providers

Key evaluation criteria have been:

Safety

Environmental footprint (e.g. power consumption, emissions, plot space)

State-of-the-art process design

Quality and Robustness

Total Cost of Ownership

The selection process was rigorous, lasting more than one year


Linde's state-of-the-art SMR Process

LIMUM®

LNG

NG

MR 100%

Specific energy consumption

(normalised conditions)

330 kWh/tLNG

warm fluids

cold fluids

T difference Tem

pera

ture

(K

)

Tem

pera

ture

diffe

rence (

K)

Heat duty

LInde

MUlti stage

Mixed refrigerant process

5 Linde AG Engineering Division 5

LNG – Technology Specifics

Coil Wound Heat Exchangers

Key Features

large heating surface per shell

in the event of an emergency shut-down, there is

tolerance to thermal shocks

repair of single tube leakages possible within

moderate down time

in the event of a leakage, gases are contained inside

of the shell – intrinsically safe design

6 Linde AG Engineering Division 6

LNG – Technology Specifics

Coil Wound Heat Exchanger Coil Assembly

This picture shows one of the two coil wound heat exchangers of a 4,3 mtpa LNG plant


All electric drive:

• The combination of all electric drive

and hydro power reduces the

environmental footprint of the project

drastically

• Linde is the only company having

experience with electrical motors of

the required size in the LNG industry

(Snøvhit LNG plant, Norway)

• Operational upsets leading to flaring

are minimized as reliability of electrical

motors is much higher than that of

other driver systems (e.g. gas turbines)

Sea Water Cooling:

• Use of sea water cooling instead of air

cooling reduces the overall power

requirement by about 15% and hence

reducing the overall enviromental

footprint

• Sea water cooling has been sucessfully

applied in the Snøvhit LNG plant

• Visual impact reduction

• Noise reduction

Technical Key Decisions


• Overall Safety

• Emergency Shut-Down (ESD), Isolation & Blowdown System

• Safety Instrumented Systems (SIS)

• Closed Flare, Vent and Drain System

• Fire & Gas Detection

• Explosion Protection

• Active and Passive Fire Protection

• Working Environment

• Emissions Management

Main Health, Safety & Environmental (HSE) Design

Philosophies


HAZID, Safety Studies, HAZOP

• HAZID (Hazard Identification):

Identification of major risk scenarios

• Layout Review and Consequence Analysis:

Gas Dispersion

Explosion

Pool & Jet Fire

• HAZOP (Hazard and Operation):

Systematic review of plant units with regard to safety and operability

• SIL Review:

Confirmation of the safety integrity level (SIL) for safety instrumented

systems


Emergency Response

Evacuation Procedure, Emergency Response Plan

Fire Brigade

Safety

Levels of Risk Reduction Measures

Hazard Mitigation

Secondary Safety System

(e.g. ESD and Depressuring System)

Active & Passive Fire Protection Systems

Hazard Prevention

Inherent Safe Design, Primary Safety Devices

(e.g. Safety Valves, Rupture Discs)

Safety Instrumented Systems

Control and Monitoring

Basic Process Control System

Monitoring System

Process

Operating Conditions

(norm, special, start-up / shut down

Process Variation

Process Upsets

Failures

Incident

Frequent scenario with serious consequences

one single failure

Pressure, Temperature, Flow, Composition,

within specified range

Unlikely scenario with serious consequences

two or more independent failures

Remote scenario with very serious

consequences


Safety Systems

Hazard Prevention

Excessive Pressures & Temperatures are prevented by:

Inherent Safe Design or

Pressure Relief Systems

Safety Instrumented Systems

Key Lock Systems


• Overall Safety

• ESD, Isolation & Blowdown System








Main HSE Design Philosophies


Safety

Explosion Protection / F&G Detection

Fire & Gas Detection Location Plan F&G System


• Overall Safety











Cryogenic Spill Protection

+ Passive Fire Protection

e.g.

The Intertherm® /

Chartek® Solution Coatings can protect

• module support frames

• critical steel structures

• equipment

against fire and cryogenic temperatures


Active Fire Protection

Fire Fighting System Plan

Fire Fighting System Plan shows:

Routing of main fire water ring line

Location of hydrants and stationary water monitors (50m jet range)


• Overall Safety











Environmental Care

Emissions Management

• Assessment of Applicable Environmental Protection Standards

• List of Emissions, Effluents and Waste

• Produced & Waste Water Management Concept

Regenerative

Thermal Oxidizer

RTO


First Impression


Discussion

Stavanger LNG Plant, Norway

Hammerfest LNG Plant, Norway

woodfibre lng project

Documents