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:
Aug. 31, 2004
Filed:
Aug. 13, 2002
Tomio Mimura, Osaka, JP;
Takashi Nojo, Osaka, JP;
Kazuo Ishida, Chiyoda-ku, JP;
Hiroshi Nakashoji, Chiyoda-ku, JP;
Hiroshi Tanaka, Hiroshima, JP;
Takuya Hirata, Hiroshima, JP;
Other;
Abstract
In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constituted in two stages, a first-stage water washing section and a second-stage water washing section . In these water washing sections, recovery of the amine compound accompanying the decarbonated exhaust gas is performed sequentially. Regeneration tower refluxed water is supplied as washing water to the second-stage water washing section . Washing water is withdrawn from the second-stage water washing section and supplied to the first-stage water washing section . Demisters and are provided at outlets of a carbon dioxide absorption section , the first-stage water washing section and the second-stage water washing section . An absorbing solution mist and a washing water mist accompanying the decarbonated exhaust gas are removed by these demisters.