The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2012
Filed:
Jan. 28, 2010
Gerald Vorberg, Speyer, DE;
Torsten Katz, Neustadt, DE;
Georg Sieder, Bad Dürkheim, DE;
Christian Riemann, Altrip, DE;
Rupert Wagner, Worms, DE;
Ute Lichtfers, Karlsruhe, DE;
Erika Dengler, Böhl-Iggelheim, DE;
Gerald Vorberg, Speyer, DE;
Torsten Katz, Neustadt, DE;
Georg Sieder, Bad Dürkheim, DE;
Christian Riemann, Altrip, DE;
Rupert Wagner, Worms, DE;
Ute Lichtfers, Karlsruhe, DE;
Erika Dengler, Böhl-Iggelheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of a) of at least one metal salt of an aminocarboxylic acid, and b) of at least one acid promoter, wherein the molar ratio of b) to a) is in the range from 0.0005 to 1.0. The acid promoter is selected from mineral acids, carboxylic acids, sulfonic acids, organic phosphonic acids and partial esters thereof. The absorption medium, compared with absorption media based on amino acid salts, has a reduced regeneration energy requirement without significantly reducing the absorption capacity of the solution for acid gases. In a process for removing acid gases from the fluid stream, the fluid stream is brought into contact with the absorption medium.