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US 7,841,288 B2Granted
Storage tank containing liquefied natural gas with butane
AssigneeDaewoo Shipbuilding & Marine Engineering Co., Ltd.
InventorsJung Han Lee, Young Sik Moon, Dong Kyu Choi, Young Soo Kim
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Abstract
Disclosed is a liquefied natural gas composition. The composition contains methane, ethane and propane and butane. The composition contains a substantial amount of butane while being substantially free of hydrocarbon molecules larger than butane.
Claims14
A liquefied natural gas plant comprising:
- a storage tank configured to store liquefied natural gas;
- a liquefied natural gas composition contained in the storage tank, wherein the liquefied natural gas composition comprises methane, ethane, propane and butane, wherein the liquefied natural gas composition contains a substantial amount of butane while being substantially free of hydrocarbon molecules having a molecular weight larger than butane;
- and
- a natural gas processor configured to receive the liquefied natural gas composition from the storage tank and to separate therefrom a substantial amount of propane and butane,
- wherein the natural gas processor is in the downstream of the storage tank, and wherein the plant does not comprise in the upstream of the storage tank another processor configured to separate a substantial amount of propane and butane from liquefied natural gas prior to storing in the storage tank.
2 more elements
Dependencies are inferred from the claim text.