Synthetic fuels and chemicals production with in-situ CO2 capture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10L-001/12
C10J-003/72
C10G-002/00
C10J-003/46
C10J-003/86
C10K-001/00
C10K-001/02
출원번호
US-0394396
(2010-09-08)
등록번호
US-9518236
(2016-12-13)
국제출원번호
PCT/US2010/048121
(2010-09-08)
§371/§102 date
20120306
(20120306)
국제공개번호
WO2011/031752
(2011-03-17)
발명자
/ 주소
Fan, Liang-Shih
Li, Fanxing
Zeng, Liang
출원인 / 주소
THE OHIO STATE UNIVERSITY RESEARCH FOUNDATION
대리인 / 주소
Michael Best & Friedrich LLP
인용정보
피인용 횟수 :
1인용 특허 :
65
초록▼
Novel redox based systems for fuel and chemical production with in-situ CO2 capture are provided. A redox system using one or more chemical intermediates is utilized in conjunction with liquid fuel generation via indirect Fischer-Tropsch synthesis, direct hydrogenation, or pyrolysis. The redox syste
Novel redox based systems for fuel and chemical production with in-situ CO2 capture are provided. A redox system using one or more chemical intermediates is utilized in conjunction with liquid fuel generation via indirect Fischer-Tropsch synthesis, direct hydrogenation, or pyrolysis. The redox system is used to generate a hydrogen rich stream and/or CO2 and/or heat for liquid fuel and chemical production. A portion of the byproduct fuels and/or steam from liquid fuel and chemical synthesis is used as part of the feedstock for the redox system.
대표청구항▼
1. A method for producing synthetic liquid fuel from a carbonaceous fuel comprising: indirectly gasifying the carbonaceous fuel using steam and optionally, an oxygen containing gas, and forming separate streams of carbon dioxide and hydrogen rich gases, wherein metal oxide particles containing Fe2O3
1. A method for producing synthetic liquid fuel from a carbonaceous fuel comprising: indirectly gasifying the carbonaceous fuel using steam and optionally, an oxygen containing gas, and forming separate streams of carbon dioxide and hydrogen rich gases, wherein metal oxide particles containing Fe2O3 are used in an indirect gasification reaction, and the carbonaceous fuel is indirectly gasified by: reducing the Fe2O3 containing particles with the carbonaceous fuel in a first reaction zone comprising a packed moving bed with a countercurrent gas-solids contacting pattern such that an average valence of iron is less than 1, wherein the first reaction zone is operated at a temperature of greater than or equal to 400° C. and less than or equal to 1200° C. and at a pressure of greater than or equal to 1.01×105 Pa and less than or equal to 8.10×106 Pa;at least partially oxidizing a portion of the reduced iron oxide containing particles from the first reaction zone with steam to generate a hydrogen rich gas in a second reaction zone comprising countercurrent gas-solids contacting pattern such that the iron oxide containing particle is at least partially oxidized to contain Fe3O4;directly sending a portion of the reduced iron oxide particles from the first reaction zone to a third reaction zone;oxidizing the reduced iron oxide particles from the first reaction zone and the iron oxide containing particles from the second reaction zone with an oxygen containing gas in the third reaction zone, and returning the oxidized iron oxide containing particles to the first reaction zone; andreacting the hydrogen rich gas and a portion of the carbon dioxide in a CO2 hydrogenation reaction to form a synthetic fuel, wherein remaining CO2 is sequestered. 2. A method as claimed in claim 1 in which at least a portion of the steam is produced using heat generated from the CO2 hydrogenation reaction. 3. A method as claimed in claim 1 in which the carbonaceous fuel comprises syngas, carbon monoxide, methane rich gas, light hydrocarbons, liquid carbonaceous fuels, coal, biomass, tar sand, oil shale, petroleum coke, heavy liquid hydrocarbons, wax, or a mixture thereof. 4. A method as claimed in claim 1 in which at least a portion of the synthetic liquid fuel is used as a feed for the carbonaceous fuel. 5. A method as claimed in claim 1 in which the metal oxide particles contain supporting material comprising a ceramic material selected from the group consisting of oxides of Al, Ti, Zr, Y, Si, La, Cr, Mg, Mn, Cu, Ca, carbides of Si and Ti, sepiolite, bentonite, and kaolin. 6. A method as claimed in claim 1 in which gaseous species selected from CO2, H2O, or gaseous fuels from CO2 hydrogenation, are introduced to the bottom of the first reaction zone to enhance conversions of both the iron oxide particles and the carbonaceous fuel. 7. A method as claimed in claim 1 in which the carbonaceous fuel comprises solid carbonaceous fuel particles which are suspended by the gases in a lower section of the first reaction zone until they are at least 50% converted before being elutriated towards the top of the first reaction zone. 8. A method as claimed in claim 1 in which a calcium oxide containing CO2 sorbent is used to assist in the indirect gasification of the carbonaceous fuels.
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