Invention Grant
US08522574B2 Method for nitrogen rejection and or helium recovery in an LNG liquefaction plant
有权
LNG液化装置中排氮和/或氦气回收的方法
- Patent Title: Method for nitrogen rejection and or helium recovery in an LNG liquefaction plant
- Patent Title (中): LNG液化装置中排氮和/或氦气回收的方法
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Application No.: US12347085Application Date: 2008-12-31
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Publication No.: US08522574B2Publication Date: 2013-09-03
- Inventor: Duffer Crawford , David Coyle , Bharthwaj Anantharaman
- Applicant: Duffer Crawford , David Coyle , Bharthwaj Anantharaman
- Applicant Address: US TX Houston
- Assignee: Kellogg Brown & Root LLC
- Current Assignee: Kellogg Brown & Root LLC
- Current Assignee Address: US TX Houston
- Agent Gary M. Machetta
- Main IPC: F25J3/00
- IPC: F25J3/00
Abstract:
Methods of reducing the concentration of low boiling point components in liquefied natural gas are disclosed. The methods involve dynamic decompression of the liquefied natural gas and one or more pre-fractionation vessels. Particular embodiments are suited for recovering helium and/or nitrogen enriched streams from a liquefied natural gas stream.
Public/Granted literature
- US20100162755A1 Method for Nitrogen Rejection and or Helium Recovery in an Liquefaction Plant Public/Granted day:2010-07-01
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