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LNG Bunkering

LNG Bunkering. Keith Barnes Director, Petroleum Barge Operations Harley Marine Services. Outline. What is LNG Why LNG New Barge Design Tank Configuration LNG Bunkering Procedures. What is LNG?. L iquefied N atural G as -162°C (-260°F) at atmospheric pressure

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LNG Bunkering

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  1. LNG Bunkering Keith Barnes Director, Petroleum Barge Operations Harley Marine Services

  2. Outline • What is LNG • Why LNG • New Barge Design • Tank Configuration • LNG Bunkering Procedures

  3. What is LNG? • Liquefied Natural Gas • -162°C (-260°F) at atmospheric pressure • 85-96 mole% methane (CH4) • Clear, colorless, odorless, non-corrosive, non-toxic • More efficient method of transporting natural gas – 1/600th the volume of equivalent methane • About 45% density of water • Reduction in emissions from using LNG as a fuel: • CO2 other Green house gases – 20-25% • SOxand particulates – approx. 100% • NOX - 85-90%

  4. Why LNG • Fuel Prices • Domestically available in abundance • ECA – Emissions Regulations • LNG technology is available and mature • LNG as marine fuel is the only technically well-proven marine emissions legislation compliance strategy

  5. ECA Zones Worldwide

  6. Marine Emission Regulations 1 – SECA: SulphurEmission Control Area 2 – ECA: Emission Control Area 3 – Subject to a technical review to be concluded in 2013 this date could be delayed Source: Marine Service GMBH

  7. Significant Fuel Cost Advantages Source: Galway Energy Advisors

  8. Strong Domestic Supply

  9. Barge Design

  10. Potential Tank Configuration

  11. Self Propelled Barge

  12. ATB Barge

  13. Bunkering Procedure • Initial precooling of fill lines • Precooling of the cargo pump • Connection of the bunker hose • Inerting the connected system with Nitrogen • Purging the connected system with NG • Filling sequence • Bottom Filling • Spray Filling • Liquid line stripping • Liquid line inerting • Disconnection

  14. Bunkering Process Adapted from Step by LNG Bunkering by DNV

  15. Bunker Procedure: Initial Precooling 1 Adapted from Step by LNG Bunkering by DNV

  16. Initial Precooling 2 Adapted from Step by LNG Bunkering by DNV

  17. Inerting the Connected System Adapted from Step by LNG Bunkering by DNV

  18. Purging Connected System Adapted from Step by LNG Bunkering by DNV

  19. Filling Sequence – Top Filling (Spray) Adapted from Step by LNG Bunkering by DNV

  20. Filling Sequence – Bottom Filling Adapted from Step by LNG Bunkering by DNV

  21. Liquid Line Stripping Adapted from Step by LNG Bunkering by DNV

  22. Liquid Line Inerting Adapted from Step by LNG Bunkering by DNV

  23. LNG Bunker Timeline Source: Swedish Marine Technology Forum

  24. Questions? • ????

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