Invention Grant
US08221712B2 Absorption medium for the selective removal of hydrogen sulfide from fluid streams
有权
用于从流体流中选择性除去硫化氢的吸收介质
- Patent Title: Absorption medium for the selective removal of hydrogen sulfide from fluid streams
- Patent Title (中): 用于从流体流中选择性除去硫化氢的吸收介质
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Application No.: US12576277Application Date: 2009-10-09
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Publication No.: US08221712B2Publication Date: 2012-07-17
- Inventor: Gerald Vorberg , Torsten Katz , Georg Sieder , Christian Riemann , Erika Dengler
- Applicant: Gerald Vorberg , Torsten Katz , Georg Sieder , Christian Riemann , Erika Dengler
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Connolly Bove Lodge & Hutz LLP
- Priority: EP09160039 20090512
- Main IPC: C07F9/38
- IPC: C07F9/38 ; B01D53/14 ; B01D53/46 ; B01D53/48 ; B01D53/54 ; B01D53/62 ; B01D53/68
Abstract:
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.
Public/Granted literature
- US20100288125A1 ABSORPTION MEDIUM FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM FLUID STREAMS Public/Granted day:2010-11-18
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