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:
Nov. 19, 1985
Filed:
Mar. 06, 1984
BASF Aktiengesellschaft, , DE;
Abstract
CO.sub.2 and/or H.sub.2 S are removed from gases which contain CO.sub.2 and/or H.sub.2 S by a process in which the said gas is treated, in an absorption stage at from 40.degree. to 100.degree. C., with an aqueous absorption liquid containing from 20 to 70% by weight of methyldiethanolamine, the treated gas is taken off at the top of the absorption stage, the aqueous absorption liquid laden with CO.sub.2 and/or H.sub.2 S is taken off at the bottom of the absorption stage and then regenerated by being let down in one or more flash stages, the flash gases being taken off at the top of the flash stage or flash stages, the losses of water as a result of water present in the gas streams taken off at the top of the absorption stage and of the flash stage or flash stages are compensated by feeding in, at the bottom of the last flash stage or, where only one flash stage is used, at the bottom of this, and amount of steam corresponding to the water loss, and the regenerated absorption liquid is recycled to the absorption stage.