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Ship Shore Interface for LPG/Chemical Gas Carriers and Terminals

This 1st edition publication identifies potential hazards at the LPG/chemical ship/shore interface. Referencing industry regulations and guidance, it suggests best working practices for the terminal and the ship to minimise the risk of incident and to help raise overall safety awareness.



Introduction, Purpose and Scope

1. Hazards and Risk Management

1.1 Introduction

1.2 The ?Bowtie Method? of Risk Assessment and Management

1.3 Hazards, Threats and Barriers Identified

2. Operational Readiness

2.1 The Terminal

2.2 The Ship

3. Pre-Arrival

4. Arrival Alongside Prior to Cargo Operations Commencing

4.1 Pre-Cargo Operations Meeting

4.2 Safe Access4.3 Emergency Procedures

4.4 Mooring

4.5 Simultaneous Operations (?SimOps?)

5. Cargo Operations (General)

5.1 Cargo Emergency Shutdown (ESD) System and Ship/Shore Link (SSL)

5.2 Communications

5.3 Manifolds and Transfer Systems

5.4 Awareness of Surge Pressures

5.5 Gas Detection On Board an LPG Carrier

5.6 Gas Detection at the Terminal

5.7 Cargo Sampling

5.8 Cargo Monitoring Instruments – Checks Prior to and During Cargo Transfers

5.9 Warm Cargoes

5.10 Reliquefaction and Tank Pressure Management

5.11 Hydrates

5.12 Incondensibles

5.13 Cargo Equipment Temperature, Flow and Pressure Limitations

5.14 Manifold Connection

5.15 Insulating against Static Electricity

5.16 Vapour Return

6. Cargo Loading

6.1 Gassing-Up

6.2 Cool Down

6.3 Preliminary Procedures before Loading

6.4 Management of Tank Pressure During Loading

6.5 Commencement of Loading

6.6 The use of Automatic Shutdown during Topping Off

6.7 Operation of the Reliquefaction Plant during Bulk Loading of LPG

6.8 Cargo Tank Loading Limits

6.9 Odourisation of LPG

6.10 Inhibitio

7. Cargo Discharge

7.1 Discharge Temperature and Pressure

7.2 Blending at the Terminal

8. LPG Carrier Departure

8.1 Manifold Draining, Purging and Disconnection Procedure

8.2 Disconnection

8.3 Preparation Prior to Unmooring

9. Release of Vapour

10. Cold Spill

11. Asphyxiation and Toxicity

Annexes and Back Up Data

Annex A ? Competencies & Training

Annex B ? Properties of Chemical and Liquefied Petroleum Gases

Annex C ? LPG/Chemical Ship Types

Annex D ? Bowtie Diagrams

Additional information

Weight 1 kg
Dimensions 30 × 21 × 1 cm

1st, 2018






Witherby Publishing