Hydroprocessing catalysts and methods for making thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-027/02
B01J-027/043
B01J-027/045
B01J-023/00
B01J-023/40
B01J-023/42
B01J-023/58
B01J-023/70
B01J-023/74
B01J-023/44
B01J-023/02
B01J-023/06
B01J-023/883
B01J-023/85
B01J-027/051
C10G-049/04
B01J-035/00
B01J-037/20
B01J-023/24
B01J-023/887
B01J-035/10
출원번호
US-0331660
(2011-12-20)
등록번호
US-8809223
(2014-08-19)
발명자
/ 주소
Nguyen, Joseph V.
Chabot, Julie
Mironov, Oleg
출원인 / 주소
Chevron U.S.A. Inc.
인용정보
피인용 횟수 :
0인용 특허 :
84
초록▼
A process for preparing an improved slurry catalyst for the upgrade of heavy oil feedstock is provided. The process comprises providing at least a metal precursor in solution comprising at least two different metal cations in its molecular structure, with at least one of the metal cations is a Group
A process for preparing an improved slurry catalyst for the upgrade of heavy oil feedstock is provided. The process comprises providing at least a metal precursor in solution comprising at least two different metal cations in its molecular structure, with at least one of the metal cations is a Group VIB metal cation; sulfiding the metal precursor with a sulfiding agent in solution forming a catalyst precursor; and mixing the catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In one embodiment, the at least a metal precursor comprising at least two different metal cations is prepared by combining and reacting at least one Group VIB metal compound with at least a Promoter metal compound selected from Group VIII, Group IIB, Group IIA, Group IVA metals and combinations thereof.
대표청구항▼
1. A process for preparing a slurry catalyst for use in upgrading heavy oil feedstock, comprising: providing a double salt metal precursor comprising at least two different metal cations in its molecular structure, with at least one of the metal cations comprising a Group VIB metal cation;sulfiding
1. A process for preparing a slurry catalyst for use in upgrading heavy oil feedstock, comprising: providing a double salt metal precursor comprising at least two different metal cations in its molecular structure, with at least one of the metal cations comprising a Group VIB metal cation;sulfiding the double salt metal precursor with a sulfiding agent forming a catalyst precursor; andmixing the catalyst precursor with a hydrocarbon diluent to form a slurry catalyst having an average particle size of 1-300 μm. 2. The process of claim 1, wherein the mixing of the catalyst precursor with the hydrocarbon diluent is in the presence of a reducing agent and under reducing conditions. 3. The process of claim 1, wherein the mixing of the catalyst precursor with the hydrocarbon diluent is under high shear mixing forming an emulsion having droplets with particle sizes ranging from 1 to 300 μm. 4. The process of claim 1, wherein providing the at least a metal precursor comprising at least two different metal cations comprises combining and reacting at least a Group VIB metal compound with at least a Promoter metal compound selected from Group VIII, Group IIB, Group IIA, Group IVA metals and combinations thereof. 5. The process of claim 4, wherein the at least one Group VIB metal compound is a water-soluble Group VIB metal salt in solution and the Promoter metal compound is a water-soluble Group VIII metal salt in solution. 6. The process of claim 5, wherein the water-soluble Group VIB metal salt in solution is selected from the group of ammonium dimolybdate, ammonium heptamolybdate, ammonium octamolybdate, potassium molybdate, potassium chromium sulfate, ammonium para-molybdate and mixtures thereof. 7. The process of claim 5, wherein the water-soluble Group VIII metal salt in solution is selected from the group of nickel sulfate, nickel ammonium sulfate, iron sulfate, and mixtures thereof. 8. The process of claim 7, wherein the water-soluble Group VIII metal salt in solution has a pH of at least 4. 9. The process of claim 8, wherein the water-soluble Group VIII metal salt in solution has a concentration of 5-8 wt. % of Group VIB metal. 10. The process of claim 5, wherein the water-soluble Group VIB metal salt in solution has a concentration of 5-8 wt. % of Group VIB metal. 11. The process of claim 10, wherein the water-soluble Group VIB metal salt in solution has a pH of at least 4. 12. The process of claim 4, wherein the Group VIB metal compound is an oil soluble molybdenum salt and the Promoter metal compound is an oil soluble Group VIII metal salt. 13. The process of claim 4, wherein the at least one Group VIB metal compound is ammonium dimolybdate and the Promoter metal compound is nickel sulfate. 14. The process of claim 1, wherein the slurry catalyst prepared therefrom has a total pore volume of at least 0.4 cc/g. 15. The process of claim 1, wherein the slurry catalyst prepared therefrom has a polymodal pore distribution with at least 80% of pore sizes in the range of 5 to 2,000 Angstroms in diameter. 16. The process of claim 1, wherein the slurry catalyst prepared therefrom has polymodal pore distribution with at least at least 80% of the pore sizes are in the range of 5 to 1000 Angstroms in diameter. 17. The process of claim 1, wherein the slurry catalyst prepared therefrom has a total surface area of at least 100 m2/g. 18. The process of claim 1, wherein the slurry catalyst prepared therefrom has an average particle size ranging from 2 to 100 μm. 19. A process for preparing a slurry catalyst for use in upgrading heavy oil feedstock, comprising: providing at least a metal precursor in solution comprising at least two different metal cations in its molecular structure, with at least one of the metal cations is a Group VIB metal cation and at least one of the metal cations is a Promoter metal cation selected from Group VIII, Group IIB, Group IIA, Group IVA metals and combinations thereof;sulfiding the metal precursor with a sulfiding agent in solution forming a catalyst precursor; andmixing the catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. 20. The process of claim 19, wherein providing the at least a metal precursor comprising at least two different metal cations comprises combining and reacting: a Group VIB water-soluble salt in a water diluent, the Group VIB water soluble salt is selected from the group of ammonium dimolybdate, ammonium heptamolybdate, ammonium octamolybdate, potassium molybdate, potassium chromium sulfate, ammonium para-molybdate and mixtures thereof and a Group VIII water-soluble salt in a water diluent, the Group VIII water soluble salt is selected from the group of nickel sulfate, nickel ammonium sulfate, iron sulfate, and mixtures thereof. 21. The process of claim 19, wherein at least one of the Group VIB water-soluble salt in a water diluent and the Group VIII water-soluble salt in a water diluent has a pH of at least 4. 22. The process of claim 19, wherein at least one of the Group VIB water-soluble salt in a water diluent and the Group VIII water-soluble salt in a water diluent has a metal concentration of 4 to 8 wt. %.
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