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. 06, 2005
Filed:
Jul. 24, 2001
Norbert Asprion, Mannheim, DE;
Christoph Grossmann, Limburgerhof, DE;
Norbert Asprion, Mannheim, DE;
Christoph Grossmann, Limburgerhof, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A description is given of the use of an alkylenediamine of the type RHN—X—NHR, where X is an alkylene radical having from 2 to 9 carbons, Ris a hydrocarbon radical having from 1 to 6 carbons and Ris a hydrocarbon radical having from 1 to 6 carbons or is hydrogen (H) for removing sour gases from a sour-gas-containing fluid stream, and of a process for deacidifying a fluid stream of this type and a wash liquid or absorption liquid for use in such a process. According to the invention, in at least one absorption step, the fluid stream is brought into intimate contact with a wash liquid, the wash liquid comprising an aqueous amine solution which comprises at least one tertiary aliphatic alkanolamine having from 2 to 12 carbons and an activator of the above type RHN—X—NHR. The fluid stream which is substantially freed from sour gases and the sour-gas-loaded wash liquid are then separated from one another.