Hydroprocessing catalysts and methods for making thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-031/00
B01J-027/24
B01J-027/02
B01J-027/043
B01J-027/045
B01J-023/00
B01J-023/40
B01J-023/42
B01J-023/44
B01J-023/58
출원번호
US-0331725
(2011-12-20)
등록번호
US-8703637
(2014-04-22)
발명자
/ 주소
Yang, Shuwu
Chabot, Julie
Jiao, Ling
Nguyen, Joseph V.
Reynolds, Bruce Edward
출원인 / 주소
Chevron U.S.A. Inc.
인용정보
피인용 횟수 :
0인용 특허 :
83
초록▼
An improved process to make a slurry catalyst for the upgrade of heavy oil feedstock is provided. In the process, at least a metal precursor feedstock is portioned and fed in any of the stages: the promotion stage; the sulfidation stage; or the transformation stage of a water-based catalyst precurso
An improved process to make a slurry catalyst for the upgrade of heavy oil feedstock is provided. In the process, at least a metal precursor feedstock is portioned and fed in any of the stages: the promotion stage; the sulfidation stage; or the transformation stage of a water-based catalyst precursor to a slurry catalyst. In one embodiment, the promoter metal precursor feedstock is split into portions, the first portion is for the sulfiding step, the second portion is for the promotion step; and optionally the third portion is to be added to the transformation step in the mixing of the sulfided promoted catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In another embodiment, the Primary metal precursor feedstock is split into portions.
대표청구항▼
1. In a process for preparing a slurry catalyst for use in upgrading heavy oil feedstock comprising: providing a first metal precursor comprising a Primary metal selected from Group VIB metals and a promoter metal precursor comprising at least a Promoter metal selected from Group IVB metals, Group V
1. In a process for preparing a slurry catalyst for use in upgrading heavy oil feedstock comprising: providing a first metal precursor comprising a Primary metal selected from Group VIB metals and a promoter metal precursor comprising at least a Promoter metal selected from Group IVB metals, Group VIII metals, Group IIB metals and combinations thereof, for a Promoter metal to a Primary metal weight ratio ranging from 1-50 wt. %; sulfiding the first metal precursor and the promoter metal precursor separately, concurrently, or together, forming a promoted sulfided catalyst precursor; and mixing the promoted sulfided catalyst precursor with a hydrocarbon diluent forming a slurry catalyst having an to average particle size of 1 to 300 μm, the improvement comprising: apportioning at least one of the metal precursors into a first portion and a second portion at a ratio of first portion to second portion ranging from 1:10 to 10:1;employing the first portion in the sulfidation step to form the promoted sulfided catalyst precursor; andmixing the second portion with the promoted sulfided catalyst precursor before, during, or after the mixing step with a hydrocarbon diluent to form the slurry catalyst. 2. The process of claim 1, wherein: the at least one of the metal precursors apportioned into the first portion and the second portion is the promoter metal precursor. 3. The process of claim 2, wherein: the second portion of the promoter metal precursor is mixed with the promoted sulfided catalyst precursor after the sulfidation step and prior to the mixing step with a hydrocarbon diluent. 4. The process of claim 2, wherein: the second portion of the promoter metal precursor is mixed with the promoted sulfided catalyst precursor during the mixing step with a hydrocarbon diluent. 5. The process of claim 2, wherein: the second portion of the promoter metal precursor is mixed with the promoted sulfided catalyst precursor after to the mixing step with a hydrocarbon diluent. 6. The process of claim 2, wherein the sulfiding of the first metal precursor and the promoter metal precursor forming a promoted sulfided catalyst precursor comprises: sulfiding a mixture of the first metal precursor and the first portion of the promoter metal precursor with at least a sulfiding agent to form the promoted sulfided metal precursor. 7. The process of claim 2, wherein the sulfiding of the first metal precursor and the promoter metal precursor forming a promoted sulfided catalyst precursor comprises: sulfiding the first portion of the promoter metal precursor with at least a sulfiding agent to form a sulfided metal precursor; andto combining the first metal precursor with the sulfided metal precursor to form the promoted sulfided metal precursor. 8. The process of claim 2, wherein the sulfiding of the first metal precursor and the promoter metal precursor forming a promoted sulfided catalyst precursor comprises: sulfiding the first metal precursor with at least a sulfiding agent to form a sulfided metal precursor; andcombining the first portion of the promoter metal precursor with the sulfided metal precursor to form the promoted sulfided metal precursor. 9. The process of claim 1, wherein: the at least one of the metal precursors is the first metal precursor. 10. The process of claim 8, wherein: the second portion of the first metal precursor is mixed with the promoted sulfided catalyst precursor after the sulfidation step and prior to the mixing step with a hydrocarbon diluent. 11. The process of claim 8, wherein: the second portion of the first metal precursor is mixed with the promoted sulfided catalyst precursor during the mixing step with a hydrocarbon diluent. 12. The process of claim 8, wherein: the second portion of the first metal precursor is mixed with the promoted sulfided catalyst precursor prior to the mixing step with a hydrocarbon diluent. 13. The process of claim 8, wherein the sulfiding of the first metal precursor and the promoter metal precursor forming a promoted sulfided catalyst precursor comprises: sulfiding a mixture of the first portion of the first metal precursor and the promoter metal precursor with at least a sulfiding agent to form the promoted sulfided metal precursor. 14. The process of claim 8, wherein the sulfiding of the first metal precursor and the promoter metal precursor forming a promoted sulfided catalyst precursor comprises: sulfiding the promoter metal precursor with at least a sulfiding agent to form a sulfided promoter metal precursor; andcombining the first portion of the first metal precursor with the sulfided promoter metal precursor metal precursor to form the promoted sulfided metal precursor. 15. The process of claim 8, wherein the sulfiding of the first metal precursor and the promoter metal precursor forming a promoted sulfided catalyst precursor comprises: sulfiding the first portion of the first metal precursor with at least a sulfiding agent to form a sulfided metal precursor; andcombining the promoter metal precursor with the sulfided metal precursor metal precursor to form the promoted sulfided metal precursor. 16. The process of claim 1, wherein the hydrocarbon diluent is selected from gasoline, diesel, vacuum gas oil, cycle oil, jet oil, fuel oil, heavy oil feedstock, and mixtures thereof. 17. The process of claim 1, wherein the improvement further comprises: sulfiding the promoted sulfided catalyst precursor with a sulfiding agent for an enhanced sulfiding step before mixing the second portion with the promoted sulfided catalyst precursor before, during, or after the mixing step with a hydrocarbon diluent to form the slurry catalyst. 18. The process of claim 1, wherein the Primary metal is molybdenum and the first metal precursor is selected from the group of molybdates, alkali metal heptamolybdates, alkali metal orthomolybdates, alkali metal isomolybdates, phosphomolybdic acid, molybdenum oxide, molybdenum carbide, molybdenum nitride, aluminum molybdate, molybdic acid, and mixtures thereof. 19. The process of claim 1, wherein the Promoter metal is nickel and the promoter metal precursor is selected from the group of nickel acetate, nickel carbonate, nickel chloride, nickel sulfate, nickel nitrate, nickel acetylacetone, nickel citrate, nickel oxalate, and mixtures thereof. 20. A process for preparing a slurry catalyst for use in upgrading heavy oil feedstock, comprising: providing a first metal precursor comprising a water-soluble salt of a Primary metal selected from Group VIB metals;providing a promoter metal precursor comprising at least a water-soluble salt of a Promoter metal selected from Group IVB metals, Group VIII metals, Group IIB metals and combinations thereof, for a Promoter metal to Primary metal weight ratio from 1 to 49 wt. %;apportioning the promoter metal precursor into a first portion and a second portion at a ratio of first portion to second portion ranging from 1:10 to 10:1;sulfiding the first metal precursor and the first portion of the promoter metal precursor with a sulfiding agent forming a sulfided catalyst precursor; andmixing the second portion of the promoter metal precursor with the sulfided catalyst precursor forming a promoted sulfided catalyst precursor;mixing the promoted sulfided catalyst precursor with a hydrocarbon diluent forming a slurry catalyst having an average particle size of 1 to 300 μm. 21. The process of claim 19, wherein the mixing of the promoted sulfided catalyst precursor with a hydrocarbon diluent is under reducing conditions in the presence of a reducing agent.
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