- 专利标题： Membrane process and system for high recovery of a nonpermeating gas
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申请号： US16834270申请日： 2020-03-30
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公开(公告)号： US11285434B2公开(公告)日： 2022-03-29
- 发明人: Donald E. Henry
- 申请人： Air Products and Chemicals, Inc.
- 申请人地址： US PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： US PA Allentown
- 代理商 Amy Carr-Trexler
- 主分类号： B01D53/22
- IPC分类号： B01D53/22 ; C10L3/10 ; C07C7/00 ; C07C7/144
摘要：
A method for separating a raw feed gas stream using a plurality of membrane separation stages includes separating a pressurized feed gas stream into a first nonpermeate stream and a first permeate stream, compressing the first permeate stream to form a compressed first permeate stream, separating the compressed first permeate stream into a second nonpermeate stream and a second permeate stream, separating the second permeate stream into a third nonpermeate stream and a third permeate stream, combining the third nonpermeate stream with a raw feed gas stream to form a combined feed stream, compressing the combined feed stream to form a compressed combined feed stream, and combining the second nonpermeate stream with the compressed combined feed stream to form the pressurized feed gas stream.
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