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:
May. 25, 2021

Filed:

Jan. 24, 2018
Applicant:

Mitsubishi Heavy Industries Engineering, Ltd., Kanagawa, JP;

Inventors:

Hiroshi Tanaka, Tokyo, JP;

Takuya Hirata, Tokyo, JP;

Takashi Kamijo, Tokyo, JP;

Tatsuya Tsujiuchi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 51/10 (2006.01); B01D 53/18 (2006.01); B01D 53/56 (2006.01); B01D 53/78 (2006.01); B01D 53/96 (2006.01); B01D 53/62 (2006.01); C01B 32/50 (2017.01); B01D 53/14 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1418 (2013.01); B01D 51/10 (2013.01); B01D 53/145 (2013.01); B01D 53/1406 (2013.01); B01D 53/1425 (2013.01); B01D 53/1456 (2013.01); B01D 53/1475 (2013.01); B01D 53/18 (2013.01); B01D 53/56 (2013.01); B01D 53/62 (2013.01); B01D 53/78 (2013.01); B01D 53/96 (2013.01); C01B 32/50 (2017.08); B01D 2251/304 (2013.01); B01D 2251/604 (2013.01); B01D 2252/20431 (2013.01); B01D 2257/404 (2013.01); B01D 2258/0283 (2013.01); Y02C 20/40 (2020.08); Y02P 20/151 (2015.11);
Abstract

A nitrogen oxide absorbing unit, a nitrogen oxide absorbing liquid extraction line, a nitrogen oxide absorbing liquid heating/regenerating unit, a released gas line, and a regenerated liquid discharge line are provided. The nitrogen oxide absorbing unit is configured to absorb and remove nitrogen oxides in exhaust gas with nitrogen oxide absorbing liquid by introducing the exhaust gas containing nitrogen oxides and carbon dioxide. Through the nitrogen oxide absorbing liquid extraction line, the circulating nitrogen oxide absorbing liquid is extracted from a nitrogen oxide absorbing liquid circulation line. The nitrogen oxide absorbing liquid heating/regenerating unit is configured to obtain released gas containing at least nitrogen monoxide and carbon dioxide and nitrogen oxide absorbing liquid regenerated liquid by subjecting the nitrogen oxide absorbing liquid to heating and regeneration treatment. Through the released gas line, exhaust gas from the nitrogen oxide absorbing unit is introduced to the released gas.


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