发明申请
- 专利标题： ABSORPTION MEDIUM FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM FLUID STREAMS
- 专利标题（中）： 从流体流中选择性去除氢硫化物的吸收介质
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申请号： US12576277申请日： 2009-10-09
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公开(公告)号： US20100288125A1公开(公告)日： 2010-11-18
- 发明人: Gerald Vorberg , Torsten Katz , Georg Sieder , Christian Riemann , Erika Dengler
- 申请人： Gerald Vorberg , Torsten Katz , Georg Sieder , Christian Riemann , Erika Dengler
- 优先权： EP09160039.5 20090512
- 主分类号： B01D53/14
- IPC分类号： B01D53/14 ; C09K3/00
摘要：
An absorption medium for the removal of acid gases from a fluid stream comprises an aqueous solution a) of at least one amine and b) at least one phosphonic acid, wherein the molar ratio of b) to a) is in the range from 0.0005 to 1.0. The phosphonic acid is, e.g., 1-hydroxyethane-1,1-diphosphonic acid. The absorption medium exhibits a reduced regeneration energy requirement compared with absorption media based on amines or amine/promoter combinations, without significantly decreasing the absorption capacity of the solution for acid gases.