Cracking catalyst comprising layered clays and a process for cracking hydrocarbon oils using the same
First Claim
1. A cracking catalyst comprising layered clays, wherein said catalyst is prepared by a process consisting essentially of:
- (1) mixing and slurrying an expandable clay, a modifier, pseudo-boehmite and water for 0.1-10 h to obtain a slurry comprising 10-40% by weight of solid, wherein various substances are added such that the resultant catalyst contains 1-98.8% by weight of the expandable clay, 0.1-50% by weight of the oxide derived from the modifier component, and 0.1-70% by weight of the alumina derived from pseudo-boehmite, based on the total weight of the catalyst, said modifier component is one or more selected from the group consisting of hydroxyl polymers of silicon, aluminum, zirconium, or titanium, and substances comprising one or more of said hydroxyl polymers;
(2) heating the slurry obtained in (1) to 50-85°
C. and aging the slurry at this temperature for 0.1-10 h;
(3) drying and forming the slurry obtained in (2);
(4) water washing and aging the formed material obtained in (3) and filtering; and
(5) drying and calcining the solid obtained in (4).
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a cracking catalyst comprising layered clays and a process for cracking hydrocarbon oils using said catalyst. Said catalyst is prepared by the process comprising the following steps: mixing and slurrying an expandable clay, a modifier component, pseudo-boehmite and water for 0.1-10 h to obtain a slurry, aging the slurry at 50-85° C. for 0.1-10 h, then drying and forming the slurry to obtain a formed material, water washing and aging the solid, and finally drying and calcining the solid, and said modifier being one or more selected from the group consisting of hydroxyl polymers of silicon, aluminum, zirconium or titanium, and substances comprising one or more of said hydroxyl polymers. Said process for cracking hydrocarbon oils comprises contacting a hydrocarbon oil with a catalyst under the cracking conditions, said catalyst being the aforesaid cracking catalyst comprising layered clays or a mixture of at least 1% by weight of said cracking catalyst comprising layered clays and a prior cracking catalyst. The catalyst according to the present invention has an improved ability to convert heavy oils. The process according to the present invention for cracking hydrocarbon oils has higher conversion of hydrocarbon oils and higher yield of light oils.
10 Citations
28 Claims
-
1. A cracking catalyst comprising layered clays, wherein said catalyst is prepared by a process consisting essentially of:
-
(1) mixing and slurrying an expandable clay, a modifier, pseudo-boehmite and water for 0.1-10 h to obtain a slurry comprising 10-40% by weight of solid, wherein various substances are added such that the resultant catalyst contains 1-98.8% by weight of the expandable clay, 0.1-50% by weight of the oxide derived from the modifier component, and 0.1-70% by weight of the alumina derived from pseudo-boehmite, based on the total weight of the catalyst, said modifier component is one or more selected from the group consisting of hydroxyl polymers of silicon, aluminum, zirconium, or titanium, and substances comprising one or more of said hydroxyl polymers;
(2) heating the slurry obtained in (1) to 50-85°
C. and aging the slurry at this temperature for 0.1-10 h;
(3) drying and forming the slurry obtained in (2);
(4) water washing and aging the formed material obtained in (3) and filtering; and
(5) drying and calcining the solid obtained in (4). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A cracking catalyst comprising layered clays, wherein said catalyst is prepared by a process consisting of the following:
-
(1) mixing and slurrying an expandable clay, a modifier, pseudo-boehmite and water for 0.1-10 h to obtain a slurry comprising 10-40% by weight of solid, wherein various substances are added such that the resultant catalyst contains 1-98.8% by weight of the expandable clay, 0.1-50% by weight of the oxide derived from the modifier component, and 0.1-70% by weight of the alumina derived from pseudo-boehmite, based on the total weight of the catalyst, said modifier component is one or more selected from the group consisting of hydroxyl polymers of silicon, aluminum, zirconium, or titanium, and substances comprising one or more of said hydroxyl polymers;
(2) heating the slurry obtained in (1) to 50-850°
C. and aging the slurry at this temperature for 0.1-10 h;
(3) drying and forming the slurry obtained in (2);
(4) water washing and aging the formed material obtained in (3) and filtering; and
(5) drying and calcining the solid obtained in (4).
-
Specification
-
- Resources
-
Current AssigneeChina Petroleum & Chemical Corporation (Central People's Government of The People's Republic of China), Research Institute of Petroleum Processing Sinopec
-
Original AssigneeChina Petroleum & Chemical Corporation (Central People's Government of The People's Republic of China), Research Institute of Petroleum Processing Sinopec
-
InventorsYu, Zhiqing, Huang, Zhiqing, Li, Caiying, Long, Jun, Chen, Zhenyu, Da, Zhijian, Min, Enze
-
Primary Examiner(s)JOHNSON, CHRISTINA ANN
-
Application NumberUS10/327,122Publication NumberTime in Patent Office910 DaysField of Search502/68, 502/80, 502/84, 502/77, 502/79, 208/120.01, 208/118, 208/119, 208/120.1US Class Current208/120.01CPC Class CodesC10G 11/05 Crystalline alumino-silicat...
