Hydroprocessing catalysts and methods for making thereof
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-027/04
B01J-027/043
B01J-027/045
B01J-037/00
B01J-037/04
B01J-031/00
B01J-027/24
B01J-027/02
B01J-023/00
B01J-023/40
B01J-023/42
B01J-023/44
B01J-023/58
B01J-023/883
B01J-023/24
B01J-023/85
B01J-023/887
B01J-027/051
B01J-035/00
B01J-037/20
C10G-049/04
C10G-049/06
C10G-049/12
B01J-035/10
출원번호
US-0331630
(2011-12-20)
등록번호
US-9040446
(2015-05-26)
발명자
/ 주소
Nguyen, Joseph V.
Chabot, Julie
Jiao, Ling
Dunckley, Christopher Paul
Yang, Shuwu
Maris, Erin P.
Mironov, Oleg
Reynolds, Bruce Edward
Kuperman, Alexander E.
출원인 / 주소
Chevron U.S.A. Inc.
인용정보
피인용 횟수 :
0인용 특허 :
84
초록▼
A method for preparing an improved slurry catalyst for the upgrade of heavy oil feedstock is provided. In one embodiment, the process comprises: sulfiding at least a metal precursor solution with at least a sulfiding agent forming a sulfided Group VIB catalyst precursor, the metal precursor solution
A method for preparing an improved slurry catalyst for the upgrade of heavy oil feedstock is provided. In one embodiment, the process comprises: sulfiding at least a metal precursor solution with at least a sulfiding agent forming a sulfided Group VIB catalyst precursor, the metal precursor solution having a pH of at least 4 and a concentration of less than 10 wt. % of Primary metal in solution; and mixing the catalyst precursor with a hydrocarbon diluent to form the slurry catalyst composition. The slurry catalyst prepared therefrom has a BET total surface area of at least 100 m2/g, a total pore volume of at least 0.5 cc/g and a polymodal pore distribution with at least 80% of pore sizes in the range of 5 to 2,000 Angstroms in diameter.
대표청구항▼
1. A process for preparing a slurry catalyst for use in the upgrade of heavy oil feedstock, comprising: providing a metal precursor solution comprising at least a water soluble salt of a Primary metal selected from any of a Group VIB metal and a Group VIII metal in a water diluent, the metal precurs
1. A process for preparing a slurry catalyst for use in the upgrade of heavy oil feedstock, comprising: providing a metal precursor solution comprising at least a water soluble salt of a Primary metal selected from any of a Group VIB metal and a Group VIII metal in a water diluent, the metal precursor solution having a pH of at least 4 and a concentration of less than 10 wt. % of the Primary metal in solution;providing a metal precursor solution comprising at least a water-soluble salt of a Promoter metal selected from any of Group IVB metals, Group VIII metals, and Group IIB metals;sulfiding the metal precursor solution with a sulfiding agent, forming a sulfided catalyst precursor; andsulfiding the at least a metal precursor solution comprising at least a water-soluble salt of a Promoter metal with a sulfiding agent, forming a sulfided Promoter metal precursor;mixing the sulfided catalyst precursor with a hydrocarbon diluent to form the slurry catalyst wherein a slurry catalyst prepared therefrom has an average particle size ranging from 1 to 300 μm, a BET total surface area of at least 100 m2/g, a polymodal pore distribution with at least 80% of pore sizes in the range of 5 to 2,000 Angstroms in diameter, and a total pore volume of at least 0.5 cc/g.mixing the sulfided Promoter metal precursor into the sulfided catalyst precursor prior to mixing the sulfided catalyst precursor with the hydrocarbon diluent. 2. The process of claim 1, wherein the mixing of the sulfided catalyst precursor with a hydrocarbon diluent is in the presence of a reducing agent and under reducing conditions. 3. The process of claim 1, wherein the metal precursor solution further comprises at least a water-soluble salt of a Promoter metal selected from any of Group IVB metals, Group VIII metals, and Group JIB metals, wherein the Promoter metal is different from the Primary metal, and the Promoter metal is present in a weight ratio of 1-50 wt. % Promoter metal to Primary metal. 4. The process of claim 1, wherein the slurry catalyst prepared therefrom has a BET surface area from 200 to 800 m2/g. 5. The process of claim 1, wherein the slurry catalyst prepared therefrom has at least 70% of pore sizes of 5 to 1000 Angstroms in diameter. 6. The process of claim 1, wherein the slurry catalyst prepared therefrom has at least 50% of the pore sizes of 5 to 5000 Angstroms in diameter. 7. The process of claim 1, wherein the slurry catalyst prepared therefrom has at least 30% of the pore sizes of at least 100 Angstroms in diameter. 8. The process of claim 1, wherein the slurry catalyst prepared therefrom has a total pore volume of at least 0.5 cc/g. 9. The slurry catalyst of claim 1, wherein the slurry catalyst has a total pore volume of at least 0.8 cc/g. 10. The process of claim 1, wherein the slurry catalyst prepared therefrom has an average particle size from 2 to 100 μm. 11. The process of claim 1, wherein the metal precursor solution has a concentration of 5-10 wt. % of the Primary metal in solution. 12. The process of claim 1, wherein the metal precursor solution has a concentration of at least 0.1 wt. % of the Primary metal in solution. 13. The process of claim 1, wherein the Primary metal is molybdenum and wherein the water-soluble metal precursor salt 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. 14. The process of claim 3, wherein the Promoter metal is nickel and wherein the water-soluble metal salt of the Promoter metal 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. 15. The process of claim 1, further comprising: mixing at least a metal precursor solution comprising at least a water-soluble salt of a Promoter metal selected from any of Group IVB metals, Group VIII metals, and will Group IIB metals into the sulfided catalyst precursor, prior to mixing the sulfided catalyst precursor with the hydrocarbon diluent. 16. The process of claim 1, wherein the hydrocarbon diluent comprises a heavy oil feedstock and wherein the metal precursor solution is mixed with the heavy oil feedstock under in-situ sulfiding condition for the heavy oil feedstock to provide the sulfiding agent needed to form the slurry catalyst. 17. The process of claim 16, wherein the in-situ sulfiding condition is at a temperature from 752° F. to 1112° F. and a pressure from 1435 psig (10 MPa) to 3610 psig (25 MPa). 18. The process of claim 1, where the sulfidation of the metal precursor solution occurs ex-situ prior to the heavy oil upgrade. 19. The process of claim 1, wherein the sulfiding agent is selected from the group of elemental sulfur, hydrogen sulfide, ammonium sulfide, ammonium polysulfide ((NH4)2Sx), ammonium thiosulfate ((NH4)2S2O3), sodium thiosulfate (Na2S2O3), thiourea (CSN2H4), carbon disulfide, dimethyl disulfide (DMDS), dimethyl sulfide (DMS), tertiarybutyl polysulfide (PSTB) and tertiarynonyl polysulfide (PSTN), and mixtures thereof. 20. The process of claim 1, wherein the hydrocarbon diluent is selected from gasoline, diesel, vacuum gas oil (VGO), cycle oil (MCO or HCO), jet oil, fuel oil, heavy oil feedstock, and mixtures thereof. 21. The process of claim 1, wherein the slurry catalyst prepared therefrom has a general formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is a Primary metal selected from group VIB metals, Group VIII metals, Group IIB metals; L is optional as a Promoter metal and L is different from M, L is at least one of a Group VIII metal, a Group VIB metal, a Group IVB metal, and a Group JIB metal; b>=0; 0=
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