发明公开
- 专利标题： Improved membrane gas desorption
- 专利标题（中）： 改进的膜气体解吸
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申请号： EP12184285.0申请日： 2012-09-13
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公开(公告)号： EP2708276A1公开(公告)日： 2014-03-19
- 发明人: Goetheer, Earl Lawrence Vincent , van de Runstraat, Annemieke
- 申请人： Nederlandse Organisatie voor Toegepast -Natuurwetenschappelijk Onderzoek TNO
- 申请人地址： Schoemakerstraat 97 2628 VK Delft NL
- 专利权人： Nederlandse Organisatie voor Toegepast -Natuurwetenschappelijk Onderzoek TNO
- 当前专利权人： Nederlandse Organisatie voor Toegepast -Natuurwetenschappelijk Onderzoek TNO
- 当前专利权人地址： Schoemakerstraat 97 2628 VK Delft NL
- 代理机构： Jansen, Cornelis Marinus
- 主分类号： B01D61/36
- IPC分类号： B01D61/36 ; B01D53/14
摘要：
The invention is directed to a membrane gas desorption process, a gas separation process and a membrane gas desorption module.
A more energy efficient and compact membrane gas desorption process can be obtained by integrating membrane gas desorption and heat exchange.
The process comprises: (a) providing rich absorption liquid, rich in said gas, (b) heating said rich absorption liquid, (c) contacting heated absorption liquid with a membrane, thereby desorbing at least part of said gas and evaporating part of said absorption liquid, providing vapour, passing desorbed gas and vapour through said membrane from a retentate side to a permeate side of said membrane, providing lean absorption liquid, (d) condensing at least part of said vapour on one or more condensers in heat exchange with the rich absorption liquid, providing a condensate, and using at least part of the heat of condensation for heating said rich absorption liquid in (b).
A more energy efficient and compact membrane gas desorption process can be obtained by integrating membrane gas desorption and heat exchange.
The process comprises: (a) providing rich absorption liquid, rich in said gas, (b) heating said rich absorption liquid, (c) contacting heated absorption liquid with a membrane, thereby desorbing at least part of said gas and evaporating part of said absorption liquid, providing vapour, passing desorbed gas and vapour through said membrane from a retentate side to a permeate side of said membrane, providing lean absorption liquid, (d) condensing at least part of said vapour on one or more condensers in heat exchange with the rich absorption liquid, providing a condensate, and using at least part of the heat of condensation for heating said rich absorption liquid in (b).
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