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.:
Date of Patent:
Jul. 26, 2016
Filed:
Nov. 21, 2011
Eiji Miyamoto, Kure, JP;
Koichi Yokoyama, Kure, JP;
Shigehito Takamoto, Kure, JP;
Naoki Oda, Kure, JP;
Eiji Miyamoto, Kure, JP;
Koichi Yokoyama, Kure, JP;
Shigehito Takamoto, Kure, JP;
Naoki Oda, Kure, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Yokohama, JP;
Abstract
An object of the present invention is to provide a COremoval apparatus that prevents release of an amine compound of an absorbing solution from a COabsorption device. The COremoval apparatus includes a desorption columnthat heats and regenerates an amine compound aqueous solution discharged from a decarbonatormaking counterflow contact of a combustion exhaust gas and an amine compound aqueous solution; and reflux means that refluxes an amine compound aqueous solution regenerated in the desorption columnto the decarbonatorvia a cooler. A contact section that makes counterflow contact of reflux water of the desorption columnand a CO-removed combustion exhaust gas is formed in two stages, and the cooleron the downstream side of the desorption column is also formed in two stages. Reflux water from the first stage cooler is supplied to the first stage contact section, and reflux water from the second stage cooler is supplied to the second stage contact section. As a result, the reflux water from the cooleron the downstream side of the desorption columncan be efficiently used for amine removal of the decarbonator, and a concentration of an amine released from the decarbonator can be reduced.