Supported nickel catalyst for synthesis gas preparation
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/40
C01B-003/00
B01J-021/02
B01J-021/00
B01J-027/185
B01J-027/14
출원번호
US-0461254
(2003-06-12)
발명자
/ 주소
Lu,Yong
Chen,Luwei
Lin,Jianyi
Dautzenberg,Frits M.
출원인 / 주소
National University of Singapore
ABB Lummus Global Inc.
대리인 / 주소
Klarquist Sparkman, LLP
인용정보
피인용 횟수 :
4인용 특허 :
11
초록▼
In one aspect, the invention provides a catalyst for the production of synthesis gas, the catalyst comprising a) from about 0.1 to about 1.3% by weight of nickel that is supported on modified support, and b) a promoting agent. The catalyst can also comprise a dispersing agent. In another aspect, th
In one aspect, the invention provides a catalyst for the production of synthesis gas, the catalyst comprising a) from about 0.1 to about 1.3% by weight of nickel that is supported on modified support, and b) a promoting agent. The catalyst can also comprise a dispersing agent. In another aspect, the invention provides a process for preparing the catalyst above, and a process for the catalytic partial oxidation of methane using the same catalyst.
대표청구항▼
The invention claimed is: 1. A catalyst for the production of synthesis gas, the catalyst comprising a modified support, from about 0.1 to about 1.3% by weight of nickel, and a promoting agent comprising boron, wherein the nickel and the boron form an alloy. 2. The catalyst according to claim 1,
The invention claimed is: 1. A catalyst for the production of synthesis gas, the catalyst comprising a modified support, from about 0.1 to about 1.3% by weight of nickel, and a promoting agent comprising boron, wherein the nickel and the boron form an alloy. 2. The catalyst according to claim 1, wherein the modified support comprises a metal oxide and a modifying element. 3. The catalyst according to claim 2, wherein the metal oxide is selected from the group consisting of aluminum oxide, zirconium oxide, titanium oxide, magnesium oxide and silicon oxide. 4. The catalyst according to claim 3, wherein the aluminum oxide is selected from the group consisting of γ-Al2O 3, Al(OH)3, AlO(OH) and (AlO(OH).xH2O). 5. The catalyst according to claim 2, wherein the modifying element is selected from the group consisting of elements of periodic table groups 1 to 12, 14, 15 and the rare earth elements. 6. The catalyst according to claim 5, wherein the modifying element is selected from the group consisting of magnesium, calcium, barium, titanium, zirconium, vanadium, cobalt, copper, zinc, silicon and phosphorus. 7. The catalyst according to claim 1, wherein the promoting agent is present in an amount of about 0.5% or less by weight of catalyst. 8. The catalyst according to claim 1, which further comprises a dispersing agent. 9. The catalyst according to claim 8, wherein the dispersing agent comprises a rare earth element selected from the group consisting of La, Sm and Ce. 10. The catalyst according to claim 9, wherein the rare earth element is present in an amount of about 0.03% or less by weight of catalyst. 11. A process for preparing a catalyst according to claim 1 which process comprises a) calcining a mixture comprising a modified support and an amount of a nickel containing salt, the amount of the nickel containing salt being such that the nickel is present in the catalyst in an amount of from about 0.1 to about 1.3% by weight after calcination, and b) contacting the calcined mixture with a promoting agent comprising boron to form an alloy of nickel and boron. 12. The process according to claim 11, wherein the calcination is carried out at a temperature of from about 300째 C. to about 650째 C. 13. The process according to claim 11, wherein a dispersing agent is added to the mixture prior to the calcination. 14. The process according to claim 13, wherein the dispersing agent comprises a rare earth element selected from the group consisting of La, Sm and Ce. 15. The process according to claim 14, wherein the dispersing agent is in the form of a nitrate, a chloride or an acetate salt. 16. The process according to claim 15, wherein the dispersing agent is selected from La(NO3)3.9H2O and Ce(NO3)3.9H2O. 17. The process according to claim 14, wherein the dispersing agent is added in an amount suitable to give a catalyst having about 0. 03% or less by weight of a rare earth element after calcination. 18. The process according to claim 11, wherein the promoting agent is in the form of a solution. 19. The process according to claim 11, wherein the promoting agent is a borohydride salt. 20. The process according to claim 11, wherein the promoting agent is added in an amount suitable to give a catalyst having about 0.5% or less by weight of boron. 21. A process for the catalytic partial oxidation of a hydrocarbon, the process comprising contacting a catalyst according to claim 1 with a gaseous mixture of oxygen and of a C1-C7 hydrocarbon, at a temperature of from about 500째 C. to about 1200째 C. 22. The process according to claim 21, wherein the catalyst further comprises, as a dispersing agent, a rare earth element selected from La, Sm and Ce. 23. The process according to claim 21, wherein the catalyst is contacted with the gaseous mixture at a pressure of from about 1 bar to about 7 bar. 24. The process according to claim 21, wherein the gaseous mixture of oxygen and of a C1-C7 hydrocarbon has a ratio of oxygen to carbon of approximately 1:2. 25. The process according to claim 21, wherein the catalyst is contacted with a reductive atmosphere prior to contacting the gaseous mixture of oxygen and methane. 26. The process according to claim 25, wherein the reductive atmosphere comprises molecular hydrogen. 27. The process according to claim 25, wherein the catalyst is contacted with a reductive atmosphere at a temperature of from about 300째 C. To about 1000째 C. 28. The process according to claim 21, wherein the catalyst further comprises a dispersing agent selected from the group consisting of La, Sm and Ce, in an amount of about 0.03% or less by weight and comprises boron in an amount of 0.5% or less by weight, and wherein the catalyst is contacted with a gaseous mixture comprising oxygen and methane in a molar ratio of 1:2, at a temperature of about 500째 C. and under a pressure of about 7 bars.
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