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:
Apr. 14, 2020
Filed:
Sep. 28, 2016
Basf SE, Ludwigshafen am Rhein, DE;
Gerald Vorberg, Ludwigshafen, DE;
Ralf Notz, Ludwigshafen, DE;
Thomas Ingram, Ludwigshafen, DE;
Georg Sieder, Ludwigshafen, DE;
Torsten Katz, Ludwigshafen, DE;
Christian Gruenanger, Ludwigshafen, DE;
Peter Deglmann, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
An absorbent for selective removal of hydrogen sulfide from a fluid stream comprises an aqueous solution comprising a) a tertiary amine; b) an aminic pH promoter selected from the compounds mentioned in the description; where the molar ratio of b) to a) is in the range from 0.05 to 1.0; and c) an acid having a pKof less than 6 in such an amount that the pH of the aqueous solution measured at 120° C. is 7.9 to less than 8.8. Also described is a process for removing acidic gases from a fluid stream, in which the fluid stream is contacted with the absorbent. The absorbent is notable for a low regeneration energy.