Back to results
US 2011/0033354 A1Published application
Absorption medium for removing acid gases from a fluid stream
AssigneeBASF SE
InventorsChristian Riemann, Torsten Katz, Georg Sieder, Gerald Vorberg, Erika Dengler
Life of this patent
Estimating the term…
Abstract
An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution (A) of an alkali metal salt of an N,N-di-C1-C4-alkylaminocarboxylic acid and (B) N-hydroxyethylpiperazine. The absorption medium has a low vapor pressure and an increased resistance to oxygen. Preferred fluid streams are combustion exhaust gases or biogas.
Claims20
An absorption medium for removing acid gases from a fluid stream comprising an aqueous solution
- (A) of an alkali metal salt of an N,N-di-C1-C4-alkylaminocarboxylic acid and
- (B) N-hydroxyethylpiperazine.
Dependencies are inferred from the claim text.