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.

Date of Patent:
Dec. 27, 2016

Filed:

Jan. 22, 2015
Applicant:

Kurita Water Industries Ltd., Nakano-ku, Tokyo, JP;

Inventors:

Satoshi Fujita, Tokyo, JP;

Kouichi Tanaka, Tokyo, JP;

Masahiko Mitsuta, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/48 (2006.01); B01D 53/54 (2006.01); F23J 15/00 (2006.01); F23J 15/02 (2006.01);
U.S. Cl.
CPC ...
B01D 53/485 (2013.01); B01D 53/54 (2013.01); F23J 15/003 (2013.01); F23J 15/006 (2013.01); F23J 15/02 (2013.01); B01D 2251/206 (2013.01); B01D 2252/20431 (2013.01); B01D 2257/302 (2013.01); B01D 2257/406 (2013.01); B01D 2258/0283 (2013.01); F23J 2215/10 (2013.01); F23J 2215/20 (2013.01); F23J 2217/102 (2013.01); F23J 2219/10 (2013.01);
Abstract

Provided is a method for effectively preventing fouling of an exhaust gas flow path of a burning equipment due to ammonium hydrogen sulfate; and thus, the method for preventing fouling of an exhaust gas flow path of a burning equipment in the present invention comprises: a step of adding a tertiary amine and/or a quaternary ammonium compound to an exhaust gas which contains ammonium hydrogen sulfate which is generated in a burning equipment thereby forming a reaction product between the ammonium hydrogen sulfate and the tertiary amine and/or the quaternary ammonium compound, and a step of controlling a temperature and a relative humidity in at least a part of an exhaust gas flow path of the burning equipment in such a way that the reaction product may be kept in a solid state.


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