MarCom WG 172: Design of Small- to Mid-Scale Marine LNG Terminals Including Bunkering (2016)

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This Working Group document provides design guidelines for small to mid-scale LNG fixed terminals including LNG bunkering for designers and operators of marine LNG terminals and infrastructure worldwide. This guidance is given in order to provide a safe, efficient and cost-effective operation of these terminals. The Terms of Reference for the Working Group are provided in Appendix A.

This document should be considered as an additional document to existing standards, and thus covers only aspects of marine LNG terminal design specific for small to mid-scale terminals. Where relevant, references will be made to codes and standards covering design aspects for conventional (large-scale) LNG terminals and other petrochemical facilities which have been found to also apply to small to mid-scale LNG terminals.

This guideline will apply to small- to mid-scale terminals with the following modes of operations:

1) Terminal on standby (with no vessels alongside)

2) LNG carriers offloading to storage or offloading point

3) LNG carriers loading from storage or loading point

4) Vessels bunkering LNG as fuel from storage or loading point

Topics that are excluded from this guideline are:

  • Conventional large scale LNG terminals
  • LPG (off)loading
  • Vessel to vessel LNG transfer when vessels are not moored to any fixed port infrastructure and are not connected to the shore
  • Single Point Moorings (SPMs) and buoy (off)loading terminals
  • Bunkering procedures
  • Transport of LNG ISO containers

This report consists of 3 parts in addition to this introduction:

  • Part 1 covers the greenfield design of small- to mid-scale terminals and focuses on how they differ in design from conventional LNG terminals. The topics that will be covered are the functional requirements, environmental conditions, terminal planning, navigational aspects, berthing and mooring, terminal infrastructure and equipment, loads, load combinations and design codes, risk assessment, safety management and inspection and maintenance.
  • Part 2 covers the retrofitting of marine terminals to include small- to mid-scale LNG facilities. It will provide guidelines for condition inspection, design checks and facility or operation alterations that are likely necessary to accommodate smaller LNG vessels at existing LNG terminals or marine terminals for other use.
  • Part 3 will cover LNG and/or CNG bunkering at a marine facility either dedicated to bunkering or used for multiple purposes. Only the effect of the bunkering operation on the terminal infrastructure will be covered here, not the bunkering operation itself.
  • Written by: MarCom Working Group 172
  • Published: October 08, 2016
  • Language: English