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:
Jun. 07, 1994
Filed:
Mar. 09, 1992
Masumi Fujii, Ikoma, JP;
Yoshitsugu Hotta, Osaka, JP;
Taiichiro Suda, Nara, JP;
Kenji Kobayashi, Osaka, JP;
Kunihiko Yoshida, Kyoto, JP;
Shigeru Shimojo, Osaka, JP;
Mutsunori Karasaki, Tokyo, JP;
Masaki Iijima, Tokyo, JP;
Fumio Tomikawa, Kawasaki, JP;
Touro Seto, Hiroshima, JP;
Shigeaki Mitsuoka, Hiroshima, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Kansai Electric Power Co., Inc., Osaka, JP;
Abstract
An apparatus and a process for removing CO.sub.2 from a combustion exhaust gas, by effecting counterflow contact of aqueous alkanolamine solution with the combustion exhaust gas to absorb CO.sub.2 from the gas in the alkanolamine solution and effecting a further contact of the gas with either, condensate water formed by causing condensation of the gas after removal of CO.sub.2, or condensate water formed by causing condensation of the combustion exhaust gas directly after combustion of the fuel. The apparatus includes a tower (1), a first contact section (2) in the tower through which the exhaust gas flows upwardly in counterflow contact with the aqueous alkanolamine solution dispersed by a nozzle device (7) downstream of the first contact section (2), a second contact section (3) in the tower (1) downstream of the nozzle device (7) for effecting counterflow contact of reflux water from a spent absorbent liquor regenerating tower (28) with the gas after removal of CO.sub.2. The temperature of the aqueous alkanolamine solution to be supplied to the CO.sub.2 -removing tower (1) is adjusted in such a manner that the temperature of the exhaust gas at the entrance (4) of the CO.sub.2 -removing tower and that of the treated gas at the exit (5) of the CO.sub.2 -removing tower are the same.