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. 06, 2016
Filed:
Sep. 29, 2011
Takahiro Marumoto, Kure, JP;
Hidehisa Yoshizako, Kure, JP;
Kenji Kiyama, Kure, JP;
Kenso Arita, Kure, JP;
Pauli Dernjatin, Helsinki, FI;
Takahiro Marumoto, Kure, JP;
Hidehisa Yoshizako, Kure, JP;
Kenji Kiyama, Kure, JP;
Kenso Arita, Kure, JP;
Pauli Dernjatin, Helsinki, FI;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama-Shi, JP;
Abstract
An oxygen combustion system includes a boiler to burn fuel using combustion gas composed of oxygen-rich gas and circulating flue gas, a dust remover disposed in a flue through which flue gas discharged from the boiler flows, a second flue leading the combustion gas to the boiler, the combustion gas being made by mixing the circulating flue gas extracted downstream of the dust remover with the oxygen-rich gas, a combustion gas heater exchanging heat between the flue gas flowing between the boiler and dust remover and the combustion gas flowing through the second flue, and a flue gas cooler disposed between the heater and the dust remover to cool the flue gas. A control unit controls at least one of a flow rate and cooling medium temperature of the flue gas cooler such that temperature of the flue gas introduced into the dust remover will be between 90° C. and 140° C.