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:
Apr. 07, 2015

Filed:

Oct. 15, 2010
Applicants:

Nobuyuki Ukai, Tokyo, JP;

Seiji Kagawa, Tokyo, JP;

Tatsuto Nagayasu, Tokyo, JP;

Takuya Okamoto, Tokyo, JP;

Inventors:

Nobuyuki Ukai, Tokyo, JP;

Seiji Kagawa, Tokyo, JP;

Tatsuto Nagayasu, Tokyo, JP;

Takuya Okamoto, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/64 (2006.01); B01D 53/75 (2006.01); B01D 53/50 (2006.01); B01D 53/86 (2006.01); C02F 103/18 (2006.01);
U.S. Cl.
CPC ...
B01D 53/64 (2013.01); B01D 53/75 (2013.01); B01D 53/50 (2013.01); B01D 53/8625 (2013.01); B01D 2251/206 (2013.01); B01D 2257/302 (2013.01); B01D 2257/404 (2013.01); B01D 2257/602 (2013.01); B01D 2258/0283 (2013.01); C02F 2103/18 (2013.01); Y02C 20/10 (2013.01);
Abstract

A system for removing Hg contained in flue gas from a boiler, the system includes: a heat exchanger for performing heat exchange of the flue gas from the boiler; a precipitator for removing soot and dust in the flue gas; a wet desulfurization device for removing mercury oxide Hgin the flue gas using an alkali absorbent; and; a removal assistant supply unit for supplying a removal assistant for removing impurities into a limestone and gypsum slurry that circulates through the wet desulfurization device.


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