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.

Date of Patent:
Jan. 21, 2020

Filed:

Mar. 24, 2015
Applicant:

Siemens Aktiengesellschaft, Munich, DE;

Inventors:

Benjamin Häfner, Langenselbold, DE;

Ansgar Kursawe, Niedernhausen, DE;

Albert Reichl, Bad Soden, DE;

Torsten Schliepdiek, Frankfurt am Main, DE;

Rüdiger Schneider, Eppstein, DE;

Henning Schramm, Hofheim am Taunus, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); B01D 61/02 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1425 (2013.01); B01D 53/1475 (2013.01); B01D 61/025 (2013.01); B01D 2252/20494 (2013.01);
Abstract

A method for separating carbon dioxide from a gas stream, in particular from a flue gas stream, wherein, a gas stream is brought into contact with a washing medium in an absorber of a separation device and the carbon dioxide contained in the gas stream is separated; the charged washing medium is supplied to a desorber of the separation device to release the carbon dioxide; a vapor stream is removed from the desorber and is supplied to a cooling unit to form a condensate; degradation products, in particular nitrosamines, contained in at least a partial stream of the condensate are photolytically decomposed to decomposition products; at least the decomposition products, in particular nitrites and amines, are removed; and at least a partial stream of the condensate is returned to the desorber. A corresponding separation device separates carbon dioxide from a gas stream.


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