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:
Mar. 19, 2019

Filed:

Apr. 24, 2014
Applicant:

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

Inventors:

Ken Tamura, Tokyo, JP;

Takashi Fujii, Tokyo, JP;

Takanori Tsutsumi, Tokyo, JP;

Takashi Kijima, Niigata, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 1/00 (2006.01); F02C 6/18 (2006.01); F02C 3/28 (2006.01); F23N 5/00 (2006.01); C10J 3/46 (2006.01); C10J 3/72 (2006.01); F23L 7/00 (2006.01); F02C 3/22 (2006.01); F02C 9/40 (2006.01); F01K 23/06 (2006.01);
U.S. Cl.
CPC ...
F02C 6/18 (2013.01); C10J 3/466 (2013.01); C10J 3/723 (2013.01); F02C 3/22 (2013.01); F02C 3/28 (2013.01); F02C 9/40 (2013.01); F23L 7/007 (2013.01); F23N 5/00 (2013.01); C10J 2300/1653 (2013.01); C10J 2300/1678 (2013.01); F01K 23/068 (2013.01); F05D 2220/72 (2013.01); Y02E 20/16 (2013.01); Y02E 20/18 (2013.01); Y02E 20/344 (2013.01);
Abstract

This IGCC plant is provided with an ASU which separates oxygen gas and nitrogen gas from air, a coal gasification furnace which uses an oxidizing agent to gasify coal, and a gas turbine which is driven by the combustion gas resulting from burning a gas generated by means of the coal gasification furnace. This IGCC plant control device () is provided with an air separation amount determination unit () which determines the production amount of nitrogen gas produced by the ASU depending on the operating load of the IGCC plant, and supplies to the coal gasification furnace the entire amount of oxygen gas generated as a byproduct in response to the determined nitrogen gas production amount. By this means, the IGCC plant can minimize blow-off of oxygen gas produced from the air.


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