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US 2016/0109178 A1Published application
Systems and Methods for Natural Gas Liquefaction Capacity Augmentation
AssigneeBechtel Hydrocarbon Technology Solutions, Inc.
InventorsGuang-Chung Lee, Sudhir Golikeri
Life of this patent
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Abstract
Systems and methods for natural gas liquefaction capacity augmentation using supplemental cooling systems and methods to improve the efficiency of a liquefaction cycle for producing liquefied natural gas (LNG).
Claims20
A supplemental cooling system for chilling a process feed gas, which comprises:
- a liquid chiller ejector system;
- a steam input line in fluid communication with the liquid chiller injector system;
- and
- a chilled liquid line wherein each end of the chilled liquid line is in fluid communication with the liquid chiller ejector system.
1 more element
A supplemental cooling system for chilling a process feed gas, which comprises:
- a process vessel with a chilled liquid input line;
- and
- a steam ejector in fluid communication with the process vessel wherein
- the steam ejector is connected to a steam input line.
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A method for chilling a process feed gas using a supplemental cooling system, which comprises:
- chilling a liquid to a temperature of about 8° C. to about 0° C. in the supplemental cooling system;
- circulating the chilled liquid through a chilled liquid line, wherein each end of the chilled liquid line is in fluid communication with the supplemental cooling system;
- and
- chilling the process feed gas in a heat exchanger as the process feed gas passes through a portion of a process feed gas line in the heat exchanger next to a portion of the chilled liquid line in the heat exchanger.
1 more element
A method for chilling a process feed gas using a supplemental cooling system, which comprises:
- chilling a liquid to a temperature of about 8° C. to about 0° C.;
- sending the chilled liquid to a process vessel;
- and
- chilling the process feed gas in a heat exchanger positioned within the process vessel as the process feed gas passes through a portion of a process feed gas line in the heat exchanger next to a portion of the chilled liquid line in the heat exchanger.
1 more element
Dependencies are inferred from the claim text.