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.:
Date of Patent:
Oct. 08, 2013
Filed:
Mar. 06, 2008
Shuuhei Terushita, Tokyo, JP;
Toshihiko Yamada, Tokyo, JP;
Shuzo Watanabe, Tokyo, JP;
Terutoshi Uchida, Tokyo, JP;
Shuuhei Terushita, Tokyo, JP;
Toshihiko Yamada, Tokyo, JP;
Shuzo Watanabe, Tokyo, JP;
Terutoshi Uchida, Tokyo, JP;
IHI Corporation, Tokyo, JP;
Electric Power Development Co., Ltd., Tokyo, JP;
Abstract
Provided are a method and an apparatus of controlling exhaust gas in an oxyfuel combustion boiler which can attain stable combustion of the boiler while an amount of unburned combustibles and a NOdensity in exhaust gas are maintained in their allowable ranges. A rate of supply of directly supplied oxygen to burnersto a total amount of oxygen produced by an air separation unitis regulated in an operating range where the NOdensity in the exhaust gas is below a NOx limit value and the amount of unburned combustibles in the exhaust gas is blow an unburned combustible limit value to thereby attain stable combustion of the oxyfuel combustion boiler.