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. 14, 2001
Filed:
Feb. 28, 1997
Masumi Fujii, Nara-ken, JP;
Yoshitsugu Hotta, Kawachinagano, JP;
Taiichiro Suda, Nara, JP;
Kenji Kobayashi, Osaka, JP;
Kunihiko Yoshida, Nagaokakyo, JP;
Shigeru Shimojo, Osaka, JP;
Mutsunori Karasaki, Tokyo, JP;
Masaki Iijima, Tokyo, JP;
Toru Seto, Hiroshima, JP;
Shigeaki Mitsuoka, Hiroshima, JP;
Other;
Abstract
A process is provided for removing carbon dioxide out of combustion exhaust gas by scrubbing the exhaust gas with an aqueous solution of monoethanolamine in a scrubber, and regenerating the carbon dioxide-loaded aqueous solution of monoethanolamine in a regenerator. The process is provided with means for replenishing the aqueous solution of monoethanolamine with a stock, aqueous solution containing from about 70% to about 75% by weight of monoethanolamine. By providing a stock, aqueous solution containing from about 70% to about 75% by weight of monoethanolamine, which is injected into the carbon dioxide-loaded aqueous solution of monoethanolamine being transferred from the scrubber to the regenerator, the entire carbon dioxide recovery system is free from flammables, rendering fire-fighting precautions unnecessary.