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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.:

US 10415467 B1

PDFFull Text
Date of Patent:
Sep. 17, 2019

Filed:

Jun. 26, 2015

Integrated gasification combined cycle and method for operating integrated gasification combined cycle

Applicant:

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

Inventors:

Naoshige Yoshida, Yokohama, JP;

Koichi Sakamoto, Yokohama, JP;

Kenichiro Kosaka, Tokyo, JP;

Tetsuya Kizu, Yokohama, JP;

Yoshinori Koyama, Tokyo, JP;

Takashi Fujii, Yokohama, JP;

Osamu Shinada, Yokohama, JP;

Assignee:

MITSUBISHI HITACHI POWER SYSTEMS, LTD., Yokohama, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Steven M Sutherland

Assistant Examiner:

Eric W Linderman

Int. Cl.
CPC ...
F01K 23/06 (2006.01); F01K 23/10 (2006.01); F02C 3/28 (2006.01); C10J 3/46 (2006.01); C10J 3/48 (2006.01); F02C 3/22 (2006.01); F02C 6/00 (2006.01); F02C 6/18 (2006.01); F22B 1/18 (2006.01); F01K 13/02 (2006.01); C10K 1/00 (2006.01);
U.S. Cl.
CPC ...
F02C 3/28 (2013.01); C10J 3/46 (2013.01); C10J 3/466 (2013.01); C10J 3/48 (2013.01); C10K 1/004 (2013.01); F01K 13/02 (2013.01); F01K 23/067 (2013.01); F01K 23/10 (2013.01); F02C 3/22 (2013.01); F02C 6/00 (2013.01); F02C 6/18 (2013.01); F22B 1/18 (2013.01); F22B 1/1815 (2013.01); C10J 2300/093 (2013.01); C10J 2300/0906 (2013.01); C10J 2300/0956 (2013.01); C10J 2300/0959 (2013.01); C10J 2300/165 (2013.01); C10J 2300/1653 (2013.01); C10J 2300/1675 (2013.01); C10J 2300/1876 (2013.01); C10J 2300/1884 (2013.01); C10J 2300/1892 (2013.01); F05D 2220/722 (2013.01); Y02E 20/16 (2013.01); Y02E 20/18 (2013.01); Y02E 50/11 (2013.01); Y02E 50/12 (2013.01); Y02P 20/129 (2015.11);
Abstract

Provided is an integrated coal gasification combined cycle equipped with: a gasifier that generates combustible gas from pulverized coal; a gas cooler; gas turbine equipment; an auxiliary fuel supply unit that supplies an auxiliary fuel to the gas turbine equipment; a heat recovery steam generator; steam turbine equipment; generators; and a circulation line unit that circulates cooling water. The heat recovery steam generator has a first medium-pressure coal economizer and a second medium-pressure coal economizer. When the combustible gas generated from the pulverized coal is burned, a serial heat exchange line is formed wherein cooling water passes through the first medium-pressure coal economizer, the second medium-pressure coal economizer, and the gas cooler. When the auxiliary fuel is burned, separate heat exchange lines are formed, wherein the cooling water separately passes through the first medium-pressure coal economizer and the second medium-pressure coal economizer.

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