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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0950312 (1997-10-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 284 인용 특허 : 67 |
A process for converting a hydrocarbon gas (e.g. natural gas) to syngas which, in turn, is converted into a liquid hydrocarbon product wherein a substantial amount of the heat generated in the process is recovered for use in generating steam needed in the process or for conversion into mechanical en
A process for converting a hydrocarbon gas (e.g. natural gas) to syngas which, in turn, is converted into a liquid hydrocarbon product wherein a substantial amount of the heat generated in the process is recovered for use in generating steam needed in the process or for conversion into mechanical energy. Further, tail gas produced by the process is used to fuel the gas turbine which, in turn, is used power the compressors needed for compressing the air used in the process. By using tail gas to fuel the gas turbine, less of the compressed combustion-air is needed to cool the combustion gases in the turbine and, instead, can be used to provide a portion of the process-air required in the process; thereby possibly saving up to 20 to 30 percent of the horsepower otherwise needed to compress the required volume of process-air.
[ What is claimed is:] [1.] In a Fischer-Tropsch conversion process for converting a hydrocarbon gas to a liquid hydrocarbon wherein a gas turbine is used to drive a compressor unit which compresses air which, in turn, is mixed with said hydrocarbon gas and steam and is flowed through a first reacto
[ What is claimed is:] [1.] In a Fischer-Tropsch conversion process for converting a hydrocarbon gas to a liquid hydrocarbon wherein a gas turbine is used to drive a compressor unit which compresses air which, in turn, is mixed with said hydrocarbon gas and steam and is flowed through a first reactor with a first catalyst to produce a syngas which is flowed through a second reactor with a second catalyst to produce said liquid hydrocarbon and a tail gas; said gas turbine having a compressor section, a combustor and a turbine section, the improvement comprising:compressing air in said compressor section of said gas turbine;supplying a first portion of said compressed air from said compressor section of said gas turbine to said combustor;supplying said tail gas from said conversion process as a fuel to said combustor to mix with said first portion of said compressed air from combustion in said combustor thereby producing combustion gases in said combustor;mixing a second portion of said compressed air from said compressor section of said gas turbine with said combustion gases from said combustor of said gas turbine to cool said combustion gases before said combustion gases are expanded through said turbine section of said gas turbine; andsupplying the remaining portion of said compressed air from said compressor section of said gas turbine directly to said first reactor of said conversion process for use as process air in said conversion process.
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