Marine Transportation of LNG
Intertanko Conference
和女孩聊天话题March 29, 2004
Bob Curt
验收报告
Ship Acquisition Manager, QatargasII Development
Marine Transportation of LNG
Topics
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What is LNG?
History of LNG Marine Transportation
LNG Carrier Fleet
中华文学Major LNG Trade Routes
LNG Vesl Types and Particulars
Safety and Risks of LNG Transportation
Technology Advances for LNG Vesls
New LNG Projects
Qatar LNG Projects
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What is LNG?
LNG is natural gas that has been liquefied by being cooled to approximately -160°C (-260°F)LNG ~ 1/600 volume of Natural Gas, making it practical to transport by ship
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What is LNG?
Properties and characteristics
Typically ~ 95% methane (CH 4) with small amounts of ethane, propane, butane and nitrogen
Colorless, odorless, non -toxic, non -carcinogenic and in liquid form is ~45% the density of water
Vapors are ~ 50% density of air and will ri under normal atmospheric conditions (propane/butane heavier than air)
Can be stored and transported in insulated tanks at standard atmospheric pressure
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What is LNG?
Flammability characteristics
Flammable when mixed with air concentrations between 5% -15% (methane)
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Not generally considered explosive
6What is LNG?
简笔画故事LNG spill characteristics
No pollution issues中风预兆
n Small spills evaporate quickly
n Large spills flow prior to vaporization
n Not a persistent cargo: OPA 90, etc. are not applicable
LNG is cryogenic, contact with some non -cryogenic material caus material to become brittle and fail; exposure to skin will cau cryogenic burns
