Process for operating an integrated gas-to-liquids facility
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/38
C01B-003/48
C07C-027/06
C10G-002/00
C07C-029/151
C01B-013/02
출원번호
US-0141685
(2016-04-28)
등록번호
US-9725385
(2017-08-08)
발명자
/ 주소
Steynberg, Andre
Lipski, Roy
출원인 / 주소
VELOCYS TECHNOLOGIES, LTD.
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
0인용 특허 :
30
초록▼
The present technology is directed to processes involving formation of hydrocarbons and oxygenated hydrocarbons through use of oxygen supplied by ion transport membranes. More particularly, the present technology relates in part to a process involving steam reforming and subsequent production of a s
The present technology is directed to processes involving formation of hydrocarbons and oxygenated hydrocarbons through use of oxygen supplied by ion transport membranes. More particularly, the present technology relates in part to a process involving steam reforming and subsequent production of a synthetic product where carbon dioxide and/or hydrogen downstream of the process is reclaimed to generate the synthetic product. The present technology also relates in part to an ethylene formation process involving a viral-templated coupling catalyst in the presence of an ion transport membrane.
대표청구항▼
1. A process comprising steam reforming a first reforming feed to produce a steam reformed product comprising H2 and CO (“the steam reforming step”);optionally subjecting a second reforming feed comprising the steam reformed product to a second reforming step to produce a second reformed product com
1. A process comprising steam reforming a first reforming feed to produce a steam reformed product comprising H2 and CO (“the steam reforming step”);optionally subjecting a second reforming feed comprising the steam reformed product to a second reforming step to produce a second reformed product comprising H2 and CO; andcontacting the H2 and CO with a synthesis catalyst to produce a synthetic product and a tail gas (“the contacting step”);wherein the synthetic product comprises one or more compounds selected from C1 to C100 hydrocarbons, C1 to C100 oxygenated hydrocarbons, or a combination thereof;the first reforming feed comprises CH4; andthe first and/or the second reforming feed comprises one or more of CO2 separated from the steam reformed product and/or the second reformed product,CO2 separated from the tail gas, orCO2 formed from subjecting at least a portion of the tail gas to a water-gas shift (“WGS”) reaction which forms a WGS product comprising CO2 and H2;heat for the steam reforming step is provided by combustion and optionally partial oxidation;the combustion and optional partial oxidation comprises flowing a combustion gas comprising H2 over a permeate surface of an ion transport membrane and flowing an O2-containing gas over a retentate surface of an ion transport membrane to react the combustion gas, produce heat, and produce an exhaust gas comprising H2O (“the combustion step”). 2. The process of claim 1, wherein the combustion gas comprises one or more of H2 separated from the steam reformed product and/or the second reformed product,H2 separated from the tail gas, orH2 formed from subjecting at least a portion of the tail gas to the WGS reaction. 3. The process of claim 1, wherein the first reforming feed comprises the exhaust gas. 4. The process of claim 1, wherein the WGS reaction comprises a portion of H2O from the steam reformed product, a portion of H2O from the second reformed product, a portion of H2O produced in the contacting step, or a combination of any two or more thereof. 5. The process of claim 1, wherein the synthesis catalyst comprises a Fischer-Tropsch catalyst, a methanol production catalyst, a higher alcohol synthesis catalyst, or a combination of any two or more thereof. 6. The process of claim 1, wherein the initial mole ratio of H2 to CO fed to the contacting step is in the range from about 0.5:1 to about 4:1. 7. The process of claim 1, wherein the combustion gas further comprises at least one of CO2 separated from the steam reformed product and/or the second reformed product,CO2 separated from the tail gas, orCO2 formed from subjecting at least a portion of the tail gas to a WGS reaction. 8. The process of claim 1, further comprising contacting the synthetic product with a hydrocracking catalyst, a hydrotreating catalyst, a hydrocarbon oxidation catalyst, or a combination of any two or more thereof. 9. The process of claim 1, further comprising combining the steam reformed product with the product of a partial oxidation process, an autothermal reforming process, a CO2 reforming process, a coal gasification process, or combinations of any two or more thereof to produce a combined feed; andcontacting the combined feed with the synthesis catalyst to produce the synthetic product. 10. The process of claim 1, wherein the process comprises subjecting the steam reformed product to the second reforming step to produce the second reformed product comprising H2 and CO. 11. The process of claim 10, wherein the second reforming step comprises partial oxidation, autothermal reforming, CO2 reforming, steam reforming, reverse water gas shift, or combinations of any two or more thereof. 12. The process of claim 1, wherein at least the second reforming feed comprises one or more of CO2 separated from the steam reformed product and/or the second reformed product,CO2 separated from the tail gas, orCO2 formed from subjecting at least a portion of the tail gas to the WGS reaction. 13. The process of claim 1, wherein at least the second reforming feed comprises one or more of H2 separated from the steam reformed product and/or the second reformed product, orH2 formed from subjecting at least a portion of the tail gas to the WGS reaction. 14. The process of claim 1, wherein the second reforming step comprises the combustion step. 15. The process of claim 14, wherein the combustion step occurs in a combustion zone followed by the second reforming step in a reforming zone. 16. The process of claim 1, wherein the second reforming step is an autothermal reforming step comprising the combustion step,the second reforming feed comprises the combustion gas,an autothermal reforming ion transport membrane (ATR-ITM) comprises the ion transport membrane of the combustion step,the second reformed product comprises the exhaust gas, andthe first reforming feed and second reforming feed do not comprise the exhaust gas. 17. The process of claim 16, wherein the autothermal reforming comprises flowing the second reforming feed over a permeate surface of the ATR-ITM and flowing the O2-containing gas over a retentate surface of the ATR-ITM to produce the second reformed product. 18. The process of claim 1, comprising including a portion of the WGS product in the first reforming feed, the second reforming feed, or both. 19. The process of claim 1, wherein the contacting step comprises flowing the H2 and CO through a microchannel reactor comprising the synthesis catalyst to produce the synthetic product. 20. The process of claim 19, wherein the microchannel reactor comprises at least one process microchannel in thermal communication with a heat exchange microchannel, and the synthesis catalyst is disposed within the process microchannel.
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