IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0649135
(2009-12-29)
|
등록번호 |
US-8263523
(2012-09-11)
|
발명자
/ 주소 |
- Kibby, Charles L.
- Haas, Alfred
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
44 |
초록
▼
A method for forming a cobalt-containing Fischer-Tropsch catalyst involves precipitating a cobalt oxy-hydroxycarbonate species by turbulent mixing, during which a basic solution collides with an acidic solution comprising cobalt. The method further involves depositing the cobalt oxy-hydroxycarbonate
A method for forming a cobalt-containing Fischer-Tropsch catalyst involves precipitating a cobalt oxy-hydroxycarbonate species by turbulent mixing, during which a basic solution collides with an acidic solution comprising cobalt. The method further involves depositing the cobalt oxy-hydroxycarbonate species onto an acidic support to provide a catalyst comprising cobalt and the acidic support. The acidic support comprises a zeolite, a molecular sieve, or combinations thereof.
대표청구항
▼
1. A method for forming a cobalt-containing Fischer-Tropsch catalyst, comprising: precipitating a cobalt oxy-hydroxycarbonate species by turbulent mixing, wherein a basic solution is collided with an acidic solution comprising cobalt; anddepositing the cobalt oxy-hydroxycarbonate species onto an aci
1. A method for forming a cobalt-containing Fischer-Tropsch catalyst, comprising: precipitating a cobalt oxy-hydroxycarbonate species by turbulent mixing, wherein a basic solution is collided with an acidic solution comprising cobalt; anddepositing the cobalt oxy-hydroxycarbonate species onto an acidic support to provide a catalyst comprising cobalt and the acidic support, wherein the acidic support comprises a zeolite, a molecular sieve, or combinations thereof. 2. The method of claim 1, wherein depositing the cobalt oxy-hydroxycarbonate species onto the acidic support comprises injecting the cobalt oxy-hydroxycarbonate species into an aqueous slurry of the acidic support. 3. The method of claim 1, wherein depositing the cobalt oxy-hydroxycarbonate species onto the acidic support comprises mixing the acidic support with the basic solution such that the cobalt oxy-hydroxycarbonate species is precipitated onto the acidic support. 4. The method of claim 1, further comprising multiple precipitation/deposition iterations with intervening decompositions. 5. The method of claim 1, wherein the weight ratio of the zeolite, the molecular sieve, or combinations thereof to cobalt is at least about 10:1. 6. The method of claim 1, wherein the acidic solution and a basic solution are heated. 7. The method of claim 6, wherein the acidic solution and a basic solution are heated to a temperature of about 80° C. 8. The method of claim 1, wherein the acidic solution comprises cobalt (II) nitrate. 9. The method of claim 1, wherein the acidic solution further comprises one or more metals selected from the group consisting of Re, Ru, Pt, Pd, Ir, Rh, Os, Au, Ag, Cu, and Mn. 10. The method of claim 9, wherein the acidic solution comprises Co(NO3)2*6H2O+Ru(NO)(NO3)3. 11. The method of claim 10, wherein the acidic solution has a weight ratio of Co:Ru between about 20:1 and about 400:1. 12. The method of claim 1, wherein the basic solution comprises (NH4)2CO3 and has a pH of about 7 to about 8. 13. The method of claim 1, further comprising decomposing the oxyhydroxycarbonate species from about 200° C. to about 250° C. in an oxidizing environment, inert gas or a reducing environment. 14. The method of claim 13, further comprising calcining the catalyst comprising cobalt and the acidic support at a temperature of about 300° C. to about 400° C. 15. The method of claim 1, further comprising reducing the catalyst comprising cobalt and the acidic support. 16. The method of claim 15, further comprising re-oxidizing the catalyst comprising cobalt and the acidic support at ≦ about 300° C. 17. The method of claim 16, further comprising reducing the catalyst comprising cobalt and the acidic support for a second time. 18. The method of claim 17, further comprising passivating the catalyst comprising cobalt and the acidic support between reducing and re-oxidizing and/or after reducing for a second time.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.