Invention Application
- Patent Title: LNG production in cryogenic natural gas processing plants
- Patent Title (中): 低温天然气加工厂的液化天然气生产
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Application No.: US10384038Application Date: 2003-03-07
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Publication No.: US20040177646A1Publication Date: 2004-09-16
- Inventor: John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
- Applicant: ELKCORP
- Applicant Address: null
- Assignee: ELKCORP
- Current Assignee: ELKCORP
- Current Assignee Address: null
- Main IPC: F25J001/00
- IPC: F25J001/00 ; F25J003/00

Abstract:
A process for liquefying natural gas in conjunction with processing natural gas to recover natural gas liquids (NGL) is disclosed. In the process, the natural gas stream to be liquefied is taken from one of the streams in the NGL recovery plant and cooled under pressure to condense it. A distillation stream is withdrawn from the NGL recovery plant to provide some of the cooling required to condense the natural gas stream. A portion of the condensed stream is expanded to an intermediate pressure and then used to provide some of the cooling required to condense the natural gas stream, and thereafter routed to the NGL recovery plant so that any heavier hydrocarbons it contains can be recovered in the NGL product. The remaining portion of the condensed stream is expanded to low pressure to form the liquefied natural gas stream.
Public/Granted literature
- US06889523B2 LNG production in cryogenic natural gas processing plants Public/Granted day:2005-05-10
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