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:
Dec. 15, 2015

Filed:

Oct. 29, 2013
Applicants:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

The Kansai Electric Power Co., Inc., Osaka-shi, Osaka, JP;

Inventors:

Yukihiko Inoue, Kanagawa, JP;

Ryuji Yoshiyama, Hiroshima, JP;

Tsuyoshi Oishi, Hiroshima, JP;

Masaki Iijima, Hiroshima, JP;

Masazumi Tanoura, Kanagawa, JP;

Tomio Mimura, Hyogo, JP;

Yasuyuki Yagi, Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); B01D 53/18 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1493 (2013.01); B01D 53/1462 (2013.01); B01D 53/18 (2013.01); B01D 2257/304 (2013.01); B01D 2257/504 (2013.01); Y02C 10/04 (2013.01); Y02C 10/06 (2013.01);
Abstract

An absorbent according to the present invention absorbs COor HS contained in flue gas emitted from a power generating plant such as a thermal plant, and contains three or more amine compounds selected from linear or cyclic amine compounds having a primary amino group, and linear or cyclic amine compounds having a secondary amino group. By way of a synergetic effect of the mixture of these compounds, the absorption speed of COor HS absorption is improved. A small amount of COcontained in a large amount of boiler flue gas can be absorbed efficiently.


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