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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.:

US 9492783 B1

PDFFull Text
Date of Patent:
Nov. 15, 2016

Filed:

Mar. 28, 2011

Carbon dioxide gas recovery device

Applicants:

Atsushi Tsutsumi, Tokyo, JP;

Akira Kishimoto, Tokyo, JP;

Yasuki Kansha, Tokyo, JP;

Kazuki Murahashi, Tokyo, JP;

Tomohiro Mimura, Tokyo, JP;

Mikihiro Hayashi, Tokyo, JP;

Yutaka Ekuni, Tokyo, JP;

Inventors:

Atsushi Tsutsumi, Tokyo, JP;

Akira Kishimoto, Tokyo, JP;

Yasuki Kansha, Tokyo, JP;

Kazuki Murahashi, Tokyo, JP;

Tomohiro Mimura, Tokyo, JP;

Mikihiro Hayashi, Tokyo, JP;

Yutaka Ekuni, Tokyo, JP;

Assignees:

NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD., Tokyo, JP;

THE UNIVERSITY OF TOKYO, Tokyo, JP;

Attorney:

Andrews Kurth Kenyon LLP

Primary Examiner:

Amber R Orlando

Assistant Examiner:

Britanny Precht

Int. Cl.
CPC ...
B01D 53/14 (2006.01); C01B 31/20 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1425 (2013.01); B01D 53/1475 (2013.01); C01B 31/20 (2013.01); B01D 2258/0283 (2013.01); B01D 2259/65 (2013.01); Y02B 30/52 (2013.01); Y02C 10/04 (2013.01); Y02C 10/06 (2013.01); Y02P 20/124 (2015.11); Y02P 20/129 (2015.11); Y02P 20/152 (2015.11);
Abstract

A carbon dioxide gas recovery device is provided which includes an absorption tower causing an absorbent to absorb carbon dioxide gas to generate a rich absorbent and a regeneration tower regenerating a lean absorbent by heating the rich absorbent to separate carbon dioxide gas therefrom. The regeneration tower includes a reboiler system heating the absorbent led out from the regeneration tower and reintroducing the heated absorbent into the regeneration tower and a mixed gas cooling system cooling a mixed gas led out from the regeneration tower, condensing a vapor fraction of a solute and a solvent, reintroducing the condensed vapor fraction into the regeneration tower, and discharging carbon dioxide gas. The carbon dioxide gas recovery device further includes a heat pump as a heat source of an endothermic reaction in which carbon dioxide gas is separated from the rich absorbent in the regeneration tower.

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