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:
Nov. 05, 2013
Filed:
Feb. 15, 2008
Tomoyuki Kuroki, Sakai, JP;
Masaaki Okubo, Sakai, JP;
Toshiaki Yamamoto, Sakai, JP;
Hidekatsu Fujishima, Kobe, JP;
Keiichi Otsuka, Toyonaka, JP;
Tomoyuki Kuroki, Sakai, JP;
Masaaki Okubo, Sakai, JP;
Toshiaki Yamamoto, Sakai, JP;
Hidekatsu Fujishima, Kobe, JP;
Keiichi Otsuka, Toyonaka, JP;
Osaka Prefecture University Public Corporation, Osaka, JP;
Japan Science and Technology Ageny, Saitama, JP;
Abstract
Disclosed are a method and an apparatus for processing an exhaust gas, which enable to suppress decrease of pH and increase of ORP of a mixture of an aqueous solution of a reducing agent and an aqueous alkali solution circulated within a wet reactor comprising a reduction reaction region and an oxidation reaction region. The method and apparatus enable to prevent deterioration of the mixed aqueous solution, and can be continuously operated for a long time. Specifically, the ORP and pH of the mixed aqueous solution of the aqueous solution of a reducing agent and the aqueous alkali solution to be circulated within the wet reactor are measured, and a fresh aqueous solution of a reducing agent and a fresh aqueous alkali solution are supplied, if necessary, into a reservoir unit arranged in the lower part of the wet reactor so that the ORP and pH of the mixed aqueous solution are kept within predetermined ranges.