发明授权
- 专利标题: Retention of amines in the removal of acid gases by means of amine absorption media
- 专利标题(中): 通过胺吸收介质保留胺去除酸性气体
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申请号: US13436113申请日: 2012-03-30
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公开(公告)号: US08529857B2公开(公告)日: 2013-09-10
- 发明人: Georg Sieder , Ralf Notz , Hugo Rafael Garcia Andarcia , Sandra Schmidt , Peter Moser
- 申请人: Georg Sieder , Ralf Notz , Hugo Rafael Garcia Andarcia , Sandra Schmidt , Peter Moser
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Novak Druce Connolly Bove + Quigg LLP
- 主分类号: B01D53/62
- IPC分类号: B01D53/62
摘要:
A method for removing acid gases from a fluid stream comprises a) treating the fluid stream in an absorption zone with an absorption medium which comprises an aqueous solution of at least one amine, conducting the treated fluid stream through at least two scrubbing zones and treating it with a non-acidic aqueous phase in order to transfer entrained amine and/or entrained amine decomposition products at least in part to the aqueous phase, wherein aqueous phase is recycled via at least one scrubbing zone and aqueous phase is conducted through at least one scrubbing zone without recycling. The method permits efficient retention of amines from the treated fluid streams.