发明申请
US20160326446A1 Process and System for Recovering Natural Gas Liquids (NGL) from Flare Gas Using Joule-Thomson (J-T) Cooling and Membrane Separation
审中-公开
使用焦耳汤姆逊（J-T）冷却和膜分离从火炬气中回收天然气液体（NGL）的工艺和系统
- 专利标题： Process and System for Recovering Natural Gas Liquids (NGL) from Flare Gas Using Joule-Thomson (J-T) Cooling and Membrane Separation
- 专利标题（中）： 使用焦耳汤姆逊（J-T）冷却和膜分离从火炬气中回收天然气液体（NGL）的工艺和系统
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申请号： US15145143申请日： 2016-05-03
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公开(公告)号： US20160326446A1公开(公告)日： 2016-11-10
- 发明人: Kaaeid A. Lokhandwala , Sachin Joshi
- 申请人： Kaaeid A. Lokhandwala , Sachin Joshi
- 申请人地址： US CA Newark
- 专利权人： Membrane Technology and Research, Inc.
- 当前专利权人： Membrane Technology and Research, Inc.
- 当前专利权人地址： US CA Newark
- 主分类号： C10L3/10
- IPC分类号： C10L3/10 ; C07C7/20 ; F25J3/06 ; C07C7/04 ; C07C7/12 ; C07C7/00 ; C07C7/144
摘要：
A process and system for recovering natural gas liquids (NGL) using a combination of J-T cooling and membrane separation. The process involves compressing, separating, and cooling a flare gas stream comprising at least methane and C3+ hydrocarbons prior to being introduced to a J-T valve. The cooled stream exiting the J-T valve is further separated, producing a NGL product stream and an uncondensed gas stream. The uncondensed gas stream is directed to a membrane separation step, which results in a C3+ hydrocarbon enriched stream and a C3+ hydrocarbon depleted stream. The C3+ hydrocarbon enriched stream may be recycled back to the process to recover more NGL.
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