IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0739834
(2003-12-18)
|
등록번호 |
US-7682598
(2010-04-21)
|
발명자
/ 주소 |
- Hagemeyer, Alfred
- Carhart, Raymond E.
- Yaccato, Karin
- Lesik, Andreas
- Brooks, Christopher James
|
출원인 / 주소 |
- Honda Giken Kogyo Kabushiki Kaisha
- Symyx Solutions, Inc.
|
대리인 / 주소 |
Capitol City TechLaw, PLLC
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
34 |
초록
▼
The invention is directed toward methods of using alkali-containing catalysts for generation of hydrogen-rich gas at temperatures of less than about 260° C. A WGS catalyst of the invention may have the following composition: a) at least one of Pt, Ru, their oxides and mixture
The invention is directed toward methods of using alkali-containing catalysts for generation of hydrogen-rich gas at temperatures of less than about 260° C. A WGS catalyst of the invention may have the following composition: a) at least one of Pt, Ru, their oxides and mixtures thereof; b) Na, its oxides or mixtures thereof; and optionally, c) Li, its oxides and mixtures thereof. The catalysts may be supported on a variety of catalyst support materials. The invention is also directed toward catalysts that exhibit both high activity and selectivity to hydrogen generation and carbon monoxide oxidation.
대표청구항
▼
What we claim is: 1. A method for producing a hydrogen-rich gas which comprises: contacting a carbon monoxide containing gas with a water gas shift catalyst in the presence of water at a temperature of less than about 260° C., wherein the water gas shift catalyst consists essentially of: a) Pt
What we claim is: 1. A method for producing a hydrogen-rich gas which comprises: contacting a carbon monoxide containing gas with a water gas shift catalyst in the presence of water at a temperature of less than about 260° C., wherein the water gas shift catalyst consists essentially of: a) Pt, its oxides or mixtures thereof; and b) Na, its oxides or mixtures thereof. 2. method according to claim 1, wherein the carbon monoxide containing gas is a syngas. 3. method according to claim 1, wherein the water gas shift catalyst is supported on a carrier comprising at least one member selected from the group consisting of alumina, zirconia, titania, ceria, magnesia, lanthania, niobia, yttria and iron oxide, and mixtures thereof. 4. A method according to claim 3, wherein the alumina is doped with Zr. 5. A method according to claim 3, wherein the carrier comprises zirconia. 6. A method according to claim 1, wherein the carbon monoxide containing gas is contacted with the water gas shift catalyst at a pressure of no more than about 50 bar. 7. A method according to claim 6, wherein the carbon monoxide containing gas is contacted with the water gas shift catalyst at a pressure of no more than about 15 bar. 8. A method according to claim 6, wherein the carbon monoxide containing gas is contacted with the water gas shift catalyst at a pressure of no more than about 1 bar. 9. A method according to claim 1, wherein the water gas shift catalyst comprises about 0.05 wt. % to about 10 wt. %, with respect to the total weight of all catalyst components plus the support material, of Pt present in the water gas shift catalyst. 10. A method according to claim 9, wherein the water gas shift catalyst comprises about 0.50 wt. % to about 6 wt. %, of Pt present in the water gas shift catalyst. 11. A method for producing a hydrogen-rich gas which comprises: contacting a carbon monoxide containing gas with a water gas shift catalyst in the presence of water at a temperature of less than about 260° C., wherein the water gas shift catalyst consists essentially of: a) Pt, its oxides or mixtures thereof; b) Na, its oxides or mixtures thereof; and c) Li, its oxides or mixtures thereof. 12. A method according to claim 11, wherein the carbon monoxide containing gas is a syngas. 13. A method according to claim 11, wherein the water gas shift catalyst is supported on a carrier comprising at least one member selected from the group consisting of alumina, zirconia, titania, ceria, magnesia, lanthania, niobia, yttria and iron oxide, and mixtures thereof. 14. A method according to claim 13, wherein the alumina is doped with Zr. 15. A method according to claim 13, wherein the carrier comprises zirconia. 16. A method according to claim 11, wherein the carbon monoxide containing gas is contacted with the water gas shift catalyst at a pressure of no more than about 50 bar. 17. A method according to claim 16, wherein the carbon monoxide containing gas is contacted with the water gas shift catalyst at a pressure of no more than about 15 bar. 18. A method according to claim 16, wherein the carbon monoxide containing gas is contacted with the water gas shift catalyst at a pressure of no more than about 1 bar. 19. A method according to claim 11, wherein the water gas shift catalyst comprises about 0.05 wt. % to about 10 wt. %, with respect to the total weight of all catalyst components plus the support material, of Pt present in the water gas shift catalyst. 20. A method according to claim 19, wherein the water gas shift catalyst comprises about 0.50 wt. % to about 6 wt. %, of Pt present in the water gas shift catalyst.
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