[특허]Process for the production of a chemical synthesis gas from coal

[미국특허] Process for the production of a chemical synthesis gas from coal 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C01B-002/14 C01B-002/16 C01B-002/02
출원번호	US-0959266 (1978-11-09)
발명자 / 주소	Eakman James M. (Houston TX) Marshall Harry A. (Madison NJ) Kalina Theodore (Morris Plains NJ)
출원인 / 주소	Exxon Research & Engineering Co. (Florham Park NJ 02)
인용정보	피인용 횟수 : 55 인용 특허 : 2

초록 ▼

A high purity chemical synthesis gas is produced by reacting steam with a carbonaceous feed material in the presence of a carbon-alkali metal catalyst and substantially equilibrium quantities of added hydrogen and carbon monoxide at a temperature between about 1000°F. and about 1500°F. and a pressure in excess of about 100 psia to produce a raw product gas consisting essentially of equilibrium quantities, at reaction temperature and pressure, of methane, steam, carbon dioxide, carbon monoxide and hydrogen; withdrawing the raw product gas from the gasifier and treating it for the removal of steam and acid gases to produce a treated gas containing primarily carbon monoxide, hydrogen and methane; recovering carbon monoxide and hydrogen from the treated gas as a chemical synthesis product gas; mixing the remainder of the treated gas consisting essentially of methane with steam; passing the resultant mixture into a steam reforming furnace where the methane reacts with the steam to produce carbon monoxide and hydrogen; and passing the effluent from the reforming furnace into the gasifier.

대표청구항 ▼

A process for the production of a chemical synthesis product gas from a carbonaceous feed material and steam which comprises: (a) reacting said steam with said carbonaceous feed material in a reaction zone at a reaction temperature between about 1000°F. and about 1500°F. and at a reaction pressure in excess of about 100 psia, in the presence of a carbon-alkali metal catalyst and sufficient added hydrogen and carbon monoxide to provide substantially equilibrium quantities of hydrogen and carbon monoxide in said reaction zone at said reaction temperature and said reaction pressure; (b) withdrawing from said reaction zone an effluent gas containing substantially equilibrium quantities, at said reaction temperature and pressure, of methane, carbon dioxide, steam, hydrogen and carbon monoxide; (c) treating said effluent gas for the removal of steam and acid gases to produce a treated gas containing primarily carbon monoxide, hydrogen and methane; (d) recovering substantially all of the carbon monoxide and hydrogen from said treated gas as a chemical synthesis product gas, thereby producing a gas comprised substantially of methane; (e) contacting the gas produced in step (d) comprised substantially of methane with steam in a steam reforming zone under conditions such that at least a portion of the methane present reacts with said steam to produce hydrogen and carbon monoxide; and (f) passing the effluent from said steam reforming zone into said reaction zone without substantial cooling, thereby supplying said added hydrogen and carbon monoxide required in said reaction zone and wherein said reforming zone is operated at conditions such that the heat content of said effluent from said steam reforming zone is sufficient to supply substantially all of the heat needed to preheat said carbonaceous feed material to said reaction temperature.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

Koh ; Kwang K. ; Nahas ; Nicholas C. ; Pennington ; Robert E. ; Vernon ; Lonnie W., Integrated catalytic gasification process.
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Eakman ; James M. ; Nahas ; Nicholas C. ; Euker ; Jr. ; Charles A., Process for the production of an intermediate Btu gas.
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이 특허를 인용한 특허 (55) 인용/피인용 타임라인 분석

Robinson, Earl T.; Keckler, Kenneth P.; Raman, Pattabhi K.; Sirdeshpande, Avinash, Agglomerated particulate low-rank coal feedstock and uses thereof.
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Raman, Pattabhi K.; Hippo, Edwin J.; Yee, Nelson, Biomass compositions for catalytic gasification.
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Robinson, Earl T., Carbonaceous fines recycle.
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Burk Maksymilian (Los Angeles CA) Blumenthal Jack L. (Los Angeles CA), Carbonaceous material and methods for making hydrogen and light hydrocarbons from such materials.
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Rappas, Alkis S.; Salem, George Frederick; Hippo, Edwin J., Catalyst-loaded coal compositions, methods of making and use.
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Hippo, Edwin J.; Raman, Pattabhi K., Co-feed of biomass as source of makeup catalysts for catalytic coal gasification.
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Rappas, Alkis S.; Salem, George Frederick, Coal compositions for catalytic gasification.
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Robinson, Earl T.; Raman, Pattabhi K.; Wu, Wenyuan, Conversion of liquid heavy hydrocarbon feedstocks to gaseous products.
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Robinson, Earl T.; Raman, Pattabhi K., Hydromethanation of a carbonaceous feedstock.
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Rappas, Alkis S.; Spitz, Robert A., Hydromethanation of a carbonaceous feedstock with nickel recovery.
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Preston, William E., Integrated enhanced oil recovery process.
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Wallace, Paul, Integrated enhanced oil recovery process.
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Powell, Charles Allen; Raman, Pattabhi K.; Robinson, Earl T.; Sirdeshpande, Avinash, Integrated hydromethanation fuel cell power generation.
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Sirdeshpande, Avinash, Integrated hydromethanation fuel cell power generation.
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Green, Martin C., Method to produce hydrogen or synthesis gas and carbon black.
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Johnson, Dennis E. J.; Abramov, Grigori A.; Kleinke, Richard A.; Wiley, Marcus A., Methods and apparatus for solid carbonaceous materials synthesis gas generation.
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Johnson, Dennis E. J.; Abramov, Grigori A.; Kleinke, Richard A.; Wiley, Marcus A., Methods and apparatus for solid carbonaceous materials synthesis gas generation.
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Johnson, Dennis E. J.; Abramov, Grigori A.; Kleinke, Richard A.; Wiley, Marcus A., Methods and apparatus for solid carbonaceous materials synthesis gas generation.
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Cummings Donald R. (Sydney AUX), Process for the production of synthesis gas from coal.
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Robinson, Earl T.; Reiling, Vincent G.; Raman, Pattabhi K.; Gal, Eli, Processes for gasification of a carbonaceous feedstock.
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Reiling, Vincent G.; Robinson, Earl T.; Sirdeshpande, Avinash; Nahas, Nicholas Charles, Processes for hydromethanation of a carbonaceous feedstock.
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Robinson, Earl T.; Raman, Pattabhi K.; Reiling, Vincent G., Processes for hydromethanation of a carbonaceous feedstock.
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Robinson, Earl T., Processes for making syngas-derived products.
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Calvin William J. (Convent Station NJ) Goldstein Stuart S. (Kinnelon NJ) Marshall Harry A. (Madison NJ), Production of methanol via catalytic coal gasification.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Process for the production of a chemical synthesis gas from coal 원문보기