Molecular sieve compositions, catalysts thereof, their making and use in conversion processes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-001/00
C07C-001/20
C07C-002/00
C07C-005/00
출원번호
US-0109278
(2005-04-19)
등록번호
US-7319178
(2008-01-15)
발명자
/ 주소
Levin,Doron
Vartuli,James Clark
출원인 / 주소
ExxonMobil Chemical Patents Inc.
인용정보
피인용 횟수 :
6인용 특허 :
34
초록▼
The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene. The catalyst composition comprises a molecular sieve and at least one oxide
The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene. The catalyst composition comprises a molecular sieve and at least one oxide of a metal selected from Group 3 of the Periodic Table of Elements, the Lanthanide series of elements and the Actinide series of elements.
대표청구항▼
We claim: 1. A process for converting a feedstock into one or more olefin(s), which process comprises contacting said feedstock in a reactor with a catalyst composition comprising a molecular sieve physically mixed with at least one oxide of a metal selected from Group 3 of the Periodic Table of El
We claim: 1. A process for converting a feedstock into one or more olefin(s), which process comprises contacting said feedstock in a reactor with a catalyst composition comprising a molecular sieve physically mixed with at least one oxide of a metal selected from Group 3 of the Periodic Table of Elements, the Lanthanide series of elements and the Actinide series of elements, wherein said metal oxide has an uptake of carbon dioxide at 100�� C. of at least 0.03 mg/m2 of the metal oxide. 2. The process of claim 1, wherein said metal oxide has an uptake of carbon dioxide at 100�� C. of at least 0.04 mg/m2 of the metal oxide. 3. The process of claim 1, wherein said metal oxide has an uptake of carbon dioxide at 100�� C. of less than 10 mg/m2 of the metal oxide. 4. The process of claim 3, wherein said metal oxide has an uptake of carbon dioxide at 100�� C. of less than 5 mg/m2 of the metal oxide. 5. The process of claim 1, and also including at least one of a binder and a matrix material different from said metal oxide. 6. The process of claim 1, wherein said metal oxide is selected from lanthanum oxide, yttrium oxide, scandium oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, thorium oxide and mixtures thereof. 7. The process of claim 1, wherein said metal oxide is yttrium oxide. 8. The process of claim 1, and also including a binder and a matrix material each being different from one another and from said metal oxide. 9. The process of claim 8, wherein the binder is an alumina sol. 10. The process of claim 8, wherein the matrix is a clay. 11. The process of claim 1, wherein the catalyst composition has a Lifetime Enhancement Index (LEI) greater than 1. 12. The process of claim 1, wherein the molecular sieve is synthesized from a reaction mixture comprising at least two of a silicon source, a phosphorus source and an aluminum source. 13. The process of claim 1, wherein the molecular sieve is a silicoaluminophosphate. 14. The process of claim 1, wherein the feedstock comprises methanol and/or dimethylether. 15. A process for converting feedstock into one or more olefin(s), which process comprises contacting said feedstock in a reactor with a catalyst composition prepared by the method comprising physically mixing first particles comprising a molecular sieve with second particles comprising at least one oxide of a metal selected from Group 3 of the Periodic Table of Elements, the Lanthanide series of elements and the Actinide series of elements, wherein said metal oxide has an uptake of carbon dioxide at 100�� C. of at least 0.03 mg/m2 of the metal oxide particles. 16. A process for converting feedstock into one or more olefin(s), which process comprises contacting said feedstock in a reactor with a catalyst composition prepared by the method comprising: (i) synthesizing a molecular sieve from a reaction mixture comprising at least one templating agent and at least two of a silicon source, a phosphorus source and an aluminum source; and (ii) recovering the molecular sieve synthesized in (i); (iii) forming a hydrated precursor of an oxide of a metal selected from Group 3 of the Periodic Table of Elements, the Lanthanide series of elements and the Actinide series of elements by precipitation from a solution containing a source of ions of said metal; (iv) recovering the hydrated precursor formed in (iii); (v) calcining the hydrated precursor recovered in (iv) to form a calcined metal oxide that has an uptake of carbon dioxide at 100�� C. of at least 0.03 mg/m2 of the metal oxide; and (vi) physically mixing the molecular sieve recovered in (i) and the calcined metal oxide produced in (v). 17. A process for producing one or more olefin(s), the process comprising: (a) introducing a feedstock comprising at least one oxygenate to a reactor system in the presence of a catalyst composition comprising a physical mixture of a molecular sieve, a binder, a matrix material, and at least one oxide of a Group 3 element and/or an element of the Lanthanide or Actinide series elements; (b) withdrawing from the reactor system an effluent stream containing one or more olefins; and (c) passing the effluent stream through a recovery system; and (d) recovering at least the one or more olefin(s). 18. The process of claim 17, wherein the binder is an alumina sol. 19. The process of claim 17, wherein the matrix material is a clay. 20. The process of claim 17, wherein the molecular sieve is a silicoalumino-phosphate molecular sieve and/or an aluminophosphate molecular sieve. 21. The process of claim 17, wherein the metal oxide is a lanthanum oxide or an yttrium oxide or a mixture thereof. 22. The process of claim 17, wherein the metal oxide has an uptake of carbon dioxide at 100�� C. of at least 0.03 mg/m2 of the metal oxide. 23. The process of claim 17, wherein the feedstock comprises methanol and/or dimethylether. 24. The process of claim 17, wherein the LEI of the catalyst composition is greater than that for the same catalyst composition without the active metal oxide. 25. The process of claim 17, wherein the sieve catalyst composition has an LEI greater than 1.5. 26. An integrated process for making one or more olefin(s), the integrated process comprising: (a) passing a hydrocarbon feedstock to a syngas production zone to produce a synthesis gas stream; (b) contacting the synthesis gas stream with a catalyst to form an oxygenated feedstock; and (c) converting the oxygenated feedstock into the one or more olefin(s) in the presence of a molecular sieve catalyst composition comprising a molecular sieve physically mixed with an oxide of at least one metal selected Group 3 or the Lanthanide or Actinide series elements of the Periodic Table of Elements. 27. The integrated process of claim 26, wherein the process further comprises (d) polymerizing the one or more olefin(s) in the presence of a polymerization catalyst into a polyolefin. 28. The integrated process of claim 26, wherein the oxygenated feedstock comprises methanol and the olefin(s) include ethylene and propylene. 29. The integrated process of claim 26, wherein the molecular sieve is a silicoaluminophosphate molecular sieve.
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