Process for producing synthesis gas and electrical energy
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/30
C01B-031/18
C01B-003/24
C01B-003/28
C10J-003/18
C10J-003/20
C10K-003/02
출원번호
US-0827496
(2015-08-17)
등록번호
US-9938144
(2018-04-10)
우선권정보
EP-14002871 (2014-08-19)
발명자
/ 주소
Maass, Hans-Jurgen
Machhammer, Otto
Bode, Andreas
Kolios, Grigorios
출원인 / 주소
BASF SE
대리인 / 주소
Millen White Zelano & Branigan, PC
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
The invention relates to a process for producing synthesis gas, in which carbon and hydrogen are obtained from hydrocarbon by thermal decomposition. At least a portion of the carbon obtained by the thermal decomposition is reacted, and at least a portion of the hydrogen obtained is reacted with carb
The invention relates to a process for producing synthesis gas, in which carbon and hydrogen are obtained from hydrocarbon by thermal decomposition. At least a portion of the carbon obtained by the thermal decomposition is reacted, and at least a portion of the hydrogen obtained is reacted with carbon dioxide by a reverse water-gas shift reaction to give carbon monoxide and water. Carbon obtained by the thermal hydrocarbon decomposition is used as fuel in a power plant operation wherein the carbon is combusted to produce electrical power, and carbon dioxide formed in the combustion of the carbon is used in the reverse water-gas shift reaction.
대표청구항▼
1. A process for producing synthesis gas, said process comprising: subjecting a hydrocarbon feedstock containing methane to thermal decomposition to obtain carbon and hydrogen,using at least a portion of the carbon obtained by said thermal decomposition as fuel in a power plant operation to produce
1. A process for producing synthesis gas, said process comprising: subjecting a hydrocarbon feedstock containing methane to thermal decomposition to obtain carbon and hydrogen,using at least a portion of the carbon obtained by said thermal decomposition as fuel in a power plant operation to produce electrical power wherein said at least a portion of the carbon is combusted to produce a carbon dioxide-containing flue gas,subjecting the carbon dioxide-containing flue gas to a chemical and/or physical gas scrubbing operation to yield carbon dioxide and a residual gas,reacting at least a portion of the hydrogen obtained by said thermal decomposition with at least a portion of the obtained carbon dioxide obtained from said scrubbing operation in a reverse water-gas shift reaction to produce a synthesis gas containing carbon monoxide and water, and converting said synthesis gas to methanol and/or dimethyl ether and/or hydrocarbons wherein waste heat is generated, and using at least a portion of the waste heat generated in the conversion of said synthesis gas in said scrubbing operation,wherein the thermal decomposition is conducted in the presence of a solid granular material,wherein the thermal energy required for synthesis gas production is generated by oxidation or partial oxidation of a fuel comprising hydrocarbons and/or hydrogen and/or by electrical power. 2. The process according to claim 1, wherein a portion of the waste heat (12) generated in the conversion of said synthesis gas is used in a power plant operation for production of electrical power. 3. The process according to claim 1, wherein said thermal decomposition is conducted in a first reaction zone (Z1) and hydrogen formed during said thermal decomposition is passed out of the first reaction zone (Z1) into a second reaction zone (Z2) where said hydrogen is reacted with carbon dioxide in said reverse water-gas shift reaction to produce water and carbon monoxide. 4. The process according to claim 3, wherein energy required for said thermal decomposition in said first reaction zone (Z1) is supplied from said second reaction zone (Z2). 5. The process according to claim 3, wherein hydrocarbon material that is undecomposed or incompletely decomposed in said first reaction zone (Z1) is passed into said second reaction zone (Z2) and reacted therein with water to produce hydrogen and carbon dioxide. 6. The process according to claim 3, wherein said first reaction zone (Z1) and said second reaction zone (Z2) are connected by means of a moving bed (W) containing said solid granular material and said moving bed moves from said second reaction zone (Z2) to said first reaction zone (Z1). 7. The process according to claim 6, wherein gas discharged from said second reaction zone (Z2) is conducted in countercurrent flow to said moving bed (W) and is cooled down by direct heat exchange with said moving bed. 8. The process according to claim 6, wherein said hydrocarbon material (2) is conducted through said first reaction zone (Z1) in countercurrent to said moving bed (W) and said hydrocarbon material (2) is heated up by direct heat exchange with said moving bed. 9. The process according to claim 6, wherein carbon deposited on said solid granular material is separated (A) downstream of said first reaction zone (Z1) and removed from said moving bed (W). 10. The process according to claim 6, wherein said solid granular materials comprises corundum (Al2O3), quartz glass (SiO2), mullite (Al2O3.SiO2), cordierite ((Mg,Fe)2(Al2Si)[Al2Si4O18]), steatite (SiO2.MgO.Al2O3), coal, coke or carbon produced in by thermal hydrocarbon decomposition, or combinations thereof. 11. The process according to claim 6, wherein said solid granular material is a carbon-rich granular material formed from solid grains having at least 95% by weight. 12. The process according to claim 11, wherein said solid grains have an equivalent diameter of 0.05 to 50 mm. 13. The process according to claim 6, wherein said solid granular material has a porosity of 0.1 to 0.85 ml/ml. 14. The process according to claim 6, wherein said solid granular material is macroporous and has a mean pore radius of 0.01 to 50 μm. 15. The process according to claim 6, wherein said solid granular material has a specific surface area of 0.02 to 100 m2/g.
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이 특허에 인용된 특허 (1)
Clawson, Lawrence G.; Dorson, Matthew H.; Mitchell, William L.; Nowicki, Brian J.; Thijssen, Johannes; Davis, Robert; Papile, Christopher; Rumsey, Jennifer W.; Longo, Nathan; Cross, III, James C.; Ri, Integrated hydrocarbon reforming system and controls.
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