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:
Dec. 10, 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
In an apparatus of controlling an exhaust gas in an oxyfuel combustion boiler having the boilerprovided with burnersand a two-stage combustion port, a primary recirculation linethrough which pulverized coal obtained by a millis fed to the burnersof the boilerby the primary recirculating exhaust gas, a secondary recirculation linethrough which another portion of the exhaust gas in recirculation is fed to a wind boxof the boiler, an oxygen producer, a direct supply linethrough which a portion of oxygen produced by the oxygen produceris directly fed to the burnerand a secondary oxygen mixing linethrough which another portion of oxygen produced by the oxygen produceris fed to the secondary recirculation line, the apparatus comprises an oxygen supply linethrough which oxygen is fed to the two-stage combustion port of the boilerand a flow rate regulatorin the oxygen supply line for adjusting oxygen density.