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:
Sep. 27, 2005
Filed:
Jun. 25, 2001
Tomio Sugimoto, Chiba, JP;
Masumi Itaya, Chiba, JP;
Yoshinao Hirano, Tokyo, JP;
Hiroaki Harada, Tokyo, JP;
Hachiro Hirano, Tokyo, JP;
Sigeru Sakurai, Fukuoka, JP;
Makoto Yoshida, Tokyo, JP;
Masaharu Tanaka, Chiba, JP;
Tomio Sugimoto, Chiba, JP;
Masumi Itaya, Chiba, JP;
Yoshinao Hirano, Tokyo, JP;
Hiroaki Harada, Tokyo, JP;
Hachiro Hirano, Tokyo, JP;
Sigeru Sakurai, Fukuoka, JP;
Makoto Yoshida, Tokyo, JP;
Masaharu Tanaka, Chiba, JP;
Mitsui Engineering & Shipbuilding, Tokyo, JP;
Asahi Glass Company Ltd., Tokyo, JP;
Abstract
A sodium-based dechlorinating agent is added to a flue gas; hydrogen chloride contained in this flue gas is removed as residue of dechlorination; the thus removed residue of dechlorination is dissolved by adding water; water-insoluble constituents are separated from the resulting aqueous solution; and after adjusting pH of the aqueous solution remaining after separation of the water-insoluble constituents, mercury, dioxin, and the like are removed and discharged. The sodium-based dechlorinating agent is mixed with a hydrophilic anti-caking agent, with an angle of repose of 40° or more, a dispersibility of less than 50, and a floodability index value of less than 90. This permits inhibition of occurrence of a pressure drop and leakage in the filter cloth of the dust collector.