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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0775702 (1996-12-19) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 269 인용 특허 : 21 |
A system and method generates electricity and co-produces a hydrogen flow from coal. The electricity is generated by a turbine with a topping combustor and a solid oxide fuel cell ("SOFC") reacting syngas. The syngas is produced in a coal gasifier with a portion of the compressed air from the turbin
A system and method generates electricity and co-produces a hydrogen flow from coal. The electricity is generated by a turbine with a topping combustor and a solid oxide fuel cell ("SOFC") reacting syngas. The syngas is produced in a coal gasifier with a portion of the compressed air from the turbine, coal, and steam. Prior to the syngas being delivered to the topping combustor and the SOFC, it is cleaned and a portion of the hydrogen in the syngas is removed to form the hydrogen flow. Additionally, a vitiated air flow from the SOFC is directed to the topping combustor and another portion of the compressed air from the turbine directed to the SOFC after it is heated with the turbine exhaust. An aspect of the invention varies the amount of electricity generated and the volume of hydrogen co-produced based upon the demand of electricity and/or the demand of said hydrogen.
[ I claim:] [1.] A system for generating electricity and co-producing hydrogen comprising:a. electricity generating means, including a turbine-solid oxide fuel cell system a turbine compressor having a turbine and an associated compressor, and an associated topping combustor, for generating electric
[ I claim:] [1.] A system for generating electricity and co-producing hydrogen comprising:a. electricity generating means, including a turbine-solid oxide fuel cell system a turbine compressor having a turbine and an associated compressor, and an associated topping combustor, for generating electricity and for producing a gasifier compressed air flow from the turbine compressor where the turbine is connected to an electrical generator, and where air inducted into the turbine compressor from a feed air inlet provides the gasifier compressed air flow;b. coal gasifier means connected to receive said gasifier compressed air flow from the turbine compressor for producing a gaseous uncleaned syngas flow from coal, steam, and the compressed air flow; andc. gaseous hydrogen co-production means for processing said gaseous uncleaned syngas flow to co-produce a gaseous hydrogen flow and for delivering a gaseous processed syngas flow to said electricity generating means, where the gaseous hydrogen co-production means comprises: (1) hot gas clean-up means for removing sulfur from said uncleaned syngas flow and for delivering a gaseous fuel stream to the topping combustor and providing a gaseous processed syngas flow, and (2) a hydrogen gas separation means for receiving and removing hydrogen gas from the processed syngas flow, and for delivering gaseous processed syngas flow, with a portion of hydrogen gas removed, to the solid oxide fuel cell system.
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