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:
Mar. 13, 2018

Filed:

May. 29, 2013
Applicants:

Mitsubishi Heavy Industries, Ltd., Tokyo, JP;

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

Inventors:

Hiroshi Tanaka, Tokyo, JP;

Hiromitsu Nagayasu, Tokyo, JP;

Takuya Hirata, Tokyo, JP;

Tsuyoshi Oishi, Tokyo, JP;

Takashi Kamijo, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); B01D 53/18 (2006.01); B01D 53/62 (2006.01); B01D 53/78 (2006.01); C01B 32/50 (2017.01);
U.S. Cl.
CPC ...
B01D 53/1425 (2013.01); B01D 53/1475 (2013.01); B01D 53/18 (2013.01); B01D 53/62 (2013.01); B01D 53/78 (2013.01); C01B 32/50 (2017.08); B01D 2252/204 (2013.01); B01D 2258/0283 (2013.01); Y02C 10/04 (2013.01); Y02C 10/06 (2013.01); Y02P 20/152 (2015.11);
Abstract

A COrecovery unit for recovery and removal of COin a CO-containing flue gas using a CO-absorbent within a COabsorber is provided. The COabsorber includes a CO-absorbing unit for the absorption of COin a CO-containing flue gas, a main water rinsing unit that is provided on a gas flow downstream side of the CO-absorbing unit and that uses rinsing water to recover the accompanying CO-absorbent while cooling decarbonated flue gas, and a preliminary water rinsing unit provided between the CO-absorbing unit and the main water rinsing unit. A portion of the rinsing water containing the CO-absorbent that is circulated in the main water rinsing unit is withdrawn and is subjected to preliminary water rinsing in the preliminary water rinsing unit. The preliminary rinsing water is allowed to meet with a CO-absorbent while allowing the rinsing water to directly flow down on the CO-absorbing unit side.


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