Catalyst compositions and preparation thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-027/182
B01J-027/14
B01J-029/06
B01J-029/00
출원번호
US-0713199
(2007-03-02)
등록번호
US-7335621
(2008-02-26)
발명자
/ 주소
Xu,Teng
출원인 / 주소
ExxonMobil Chemical Patents Inc.
인용정보
피인용 횟수 :
1인용 특허 :
26
초록▼
This invention relates to a process and the product thereof for preparing, a molecular sieve catalyst composition, comprising a mixture of: a first quantity of molecular sieve particles, having an 8-ring or larger structure, and a pore size of from about 3 angstroms to about 15 angstroms; and a seco
This invention relates to a process and the product thereof for preparing, a molecular sieve catalyst composition, comprising a mixture of: a first quantity of molecular sieve particles, having an 8-ring or larger structure, and a pore size of from about 3 angstroms to about 15 angstroms; and a second quantity of metal carbonate particles; the mixture having been calcined at a temperature of at least about 200�� C. for at least about 1 second.
대표청구항▼
What is claimed is: 1. A catalyst composition prepared according to a process comprising the steps of: a. mixing a first quantity of molecular sieve particles with a second quantity of metal carbonate particles, the molecular sieve particles having an 8-ring or larger structure, and a pore size of
What is claimed is: 1. A catalyst composition prepared according to a process comprising the steps of: a. mixing a first quantity of molecular sieve particles with a second quantity of metal carbonate particles, the molecular sieve particles having an 8-ring or larger structure, and a pore size of from about 3 angstroms to about 15 angstroms; and b. calcining the mixture of molecular sieve particles and metal carbonate particles at a temperature of at least about 200�� C. for at least 1 second. 2. The catalyst composition of claim 1, wherein the molecular sieve particles have a pore system defined by an 8-membered ring of tetrahedra [TO4]. 3. The catalyst composition of claim 1, wherein the molecular sieve particles have a pore system defined by a 10-membered ring of tetrahedra [TO4]. 4. The catalyst composition of claim 1, wherein the molecular sieve particles are silicoaluminophosphate molecular sieve particles and/or aluminosilicate molecular sieve particles, or mixtures thereof. 5. The catalyst composition of claim 1, wherein the molecular sieve particles are of the CHA and/or AEI framework types, or mixtures thereof. 6. The catalyst composition of claim 1, wherein the molecular sieve particles have an average particle size of less than about 2 mm. 7. The catalyst composition of claim 1, wherein the molecular sieve particles have an average particle size of less than about 1 mm. 8. The catalyst composition of claim 1, wherein the molecular sieve particles have an average particle size of less than about 500 microns. 9. The catalyst composition of claim 1, wherein the molecular sieve particles have an average particle size of less than about 150 microns. 10. The catalyst composition of claim 1, wherein the metal carbonate particles comprise about 5 to about 50 wt % of the final mixture of molecular sieve particles and metal carbonate particles. 11. The catalyst composition of claim 1, wherein the mixture has been calcined at a temperature of from about 200�� C. to about 700�� C. for at least about 1 second. 12. The catalyst composition of claim 1, wherein the mixture has been calcined at a temperature of less than about 500�� C. for at least about 1 second. 13. The catalyst composition of claim 1, wherein the mixture has been calcined at a temperature of from about 300�� C. to about 600�� C. for at least about 1 second. 14. The catalyst composition of claim 1, wherein the mixture has been calcined at a temperature of from about 400�� C. to about 600�� C. for at least about 1 second. 15. The catalyst composition of claim 1, wherein the molecular sieve particles are SAPO-34. 16. The catalyst composition of claim 1, wherein the metal carbonate comprises a metal selected from the group consisting of groups 2A, 3B, 4B, and 8B of the Periodic Table and combinations thereof. 17. The catalyst composition of claim 1, wherein the metal carbonate is yttrium carbonate. 18. The catalyst composition of claim 1, wherein the molecular sieve particles are SAPO-34 and the metal carbonate is yttrium carbonate. 19. The catalyst composition of claim 17, wherein the molecular sieve particles and the yttrium carbonate particles are intimately mixed. 20. The catalyst composition of claim 1, wherein the molecular sieve particles are SAPO-34, the metal carbonate is yttrium carbonate, the SAPO-34 and the yttrium carbonate are intimately mixed, and the mixture is calcined at about 300�� C. to about 600�� C. for at least 1 second. 21. The catalyst composition of claim 1, wherein the molecular sieve particles have a pore size of about 3 to about 10 angstroms. 22. The catalyst composition of claim 1, wherein the molecular sieve particles have a pore size of about 3 to about 8 angstroms. 23. The catalyst composition of claim 1, wherein the molecular sieve particles have a pore size of about 3 to about 4.5 angstroms. 24. The catalyst composition of claim 1, wherein the molecular sieve particles have a pore size of about 3.5 to about 4.2 angstroms. 25. The catalyst composition of claim 1, wherein the average particle size of the metal carbonate particles are less than about 500 microns. 26. The catalyst composition of claim 1, wherein the average particle size of the metal carbonate particles are less than about 450 microns. 27. The catalyst composition of claim 1, wherein the average particle size of the metal carbonate particles are less than about 400 microns. 28. The catalyst composition of claim 1, wherein the average particle size of the metal carbonate particles are less than about 350 microns. 29. The catalyst composition of claim 1, wherein the average particle size of the metal carbonate particles are less than about 300 microns. 30. The catalyst composition of claim 1, wherein the molecular sieve particles are crystalline silicoaluminophosphate molecular sieve particles substantially of CHA framework type. 31. The catalyst composition of claim 1, wherein the molecular sieve particles are SAPO molecular sieve particles which consist of mixed or intergrown phases of molecular sieves having the CHA and/or AEI framework types. 32. A process of preparing a molecular sieve catalyst composition comprising: a. mixing a first quantity of molecular sieve particles with a second quantity of metal carbonate particles, the molecular sieve particles having an average particle size of less than about 300 microns, an 8-ring or larger structure, and a pore size of from about 3 angstroms to about 15 angstroms, and the metal carbonate particles having an average particle size of less than about 500 microns; and b. calcining the molecular sieve and metal carbonate mixture at a temperature of at least about 200�� C. for at least 1 second. 33. A catalyst composition comprising a mixture of: a. a first quantity of molecular sieve particles having an average particle size of less than about 300 microns, an 8-ring or larger structure, and a pore size of from about 3 angstroms to about 15 angstroms; and b. a second quantity of metal carbonate particles having an average particle size of less than about 500 microns; the mixture having been calcined at a temperature of at least about 200�� C. for at least about 1 second. 34. The process of claim 32, wherein the molecular sieve particles are SAPO molecular sieve particles which consist of mixed or intergrowth phases of molecular sieves having the CHA and AEI framework types. 35. The process of claim 32, wherein the molecular sieve particles have a pore system defined by an 8-membered ring of tetrahedra [TO4]. 36. The process of claim 32, wherein the metal carbonate particles comprise about 5 to about 50 wt % of the final mixture of molecular sieve particles and metal carbonate particles. 37. The process of claim 32, wherein the mixture has been calcined at a temperature of from about 200�� C. to about 700�� C. for at least about 1 second. 38. The process of claim 32, wherein the metal carbonate comprises a metal selected from the group consisting of groups 2, 3, 4, 8, 9, and 10 of the Periodic Table and combinations thereof. 39. The process of claim 32, wherein the molecular sieve particles are SAPO-34 and the metal carbonate is yttrium carbonate. 40. The process of claim 32, wherein the metal carbonate particles having an average particle size of less than about 400 microns.
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