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:
Jan. 30, 2024
Filed:
Mar. 26, 2020
Hitachi, Ltd., Tokyo, JP;
Yuzo Shirakawa, Tokyo, JP;
Takao Ishikawa, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
An object of the present invention is to provide a fuel cell power generation system that can attain a higher fuel utilization rate and can also attain higher power generation efficiency simultaneously. The fuel cell power generation system includes an oxide-ion-conducting first fuel cellthat performs reformation of a fuel containing hydrocarbon and power generation and a proton-conducting second fuel cellthat performs power generation by being supplied with hydrogen from the first fuel cell. The fuel utilization rate of the first fuel cellcan be set to 30% or lower, for example, and the fuel utilization rate of the second fuel cellcan be set to 70% or higher, for example. By adopting such a multi-stage configuration, it is possible to increase the power generation efficiency as a whole and to also attain a high fuel utilization rate simultaneously.