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. 26, 2017

Filed:

Jun. 05, 2015
Applicant:

Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;

Inventors:

Tomotsugu Masuda, Kanagawa, JP;

Masashi Kiyosawa, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); B01D 53/56 (2006.01); B01D 53/75 (2006.01); B01D 53/81 (2006.01); B01D 46/00 (2006.01); F23J 15/02 (2006.01); F23J 15/00 (2006.01); F23L 15/00 (2006.01); F22B 31/08 (2006.01); F23L 15/04 (2006.01); F01K 13/00 (2006.01);
U.S. Cl.
CPC ...
F23J 15/02 (2013.01); F01K 13/00 (2013.01); F22B 31/08 (2013.01); F23J 15/00 (2013.01); F23L 15/00 (2013.01); F23L 15/04 (2013.01);
Abstract

A boiler system is provided including: a boiler that burns fuel containing sulfur content, chlorine content, and water content to generate a combustion gas; a bagfilter that removes sulfur oxide; a denitration section that removes nitrogen oxide; a desulfurizing absorbent supply section that mixes a desulfurizing absorbent into the combustion gas on an upstream side of the bagfilter; and a reformer that mixes a denitrating reagent into the combustion gas on an upstream side of the denitration section, wherein the bagfilter performs dry desulfurization, and a temperature of the combustion gas passing through the bagfilter and flowing into the denitration section is higher than 200° C. and 350° C. or lower, and the combustion gas from which the sulfur oxide has been removed by the bagfilter flows into the denitration section without being heated on the upstream side of the denitration section.


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