Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2005-06-21
2005-06-21
Johnson, Christina (Department: 1725)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S118000, C208S119000, C208S120100, C502S068000, C502S080000, C502S084000, C502S077000, C502S079000
Reexamination Certificate
active
06908544
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.
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Translation of CN 1031029, published Feb. 1989.
English Language Abstract of CN 1031029. no date.
English Language Abstract of CN 1048427, no date.
English Language Abstract of CN86101990, no date.
English Language Abstract of CN1030376, no date.
English Language Abstract of CN 1060204, no date.
English Language Abstract of CN 1031489, no date.
English Language Abstract of CN 1056869, no date.
English Language Abstract of CN 1069682, No date.
English Language Abstract of CN 1060755, no date.
English Language Abstract of CN 1030326, no date.
English Language Abstract of CN13268, no date.
English Language Abstract of CN 1240813, no date.
English Language Abstract of CN 1247885, no date.
English Language Abstract of CN 6127396, no date.
English Language Abstract of JP Appln. No. 6-127936. 1994.
Chen Zhenyu
Da Zhijian
Huang Zhiqing
Li Caiying
Long Jun
China Petroleum & Chemical Corporation
Johnson Christina
Research Institute of Petroleum Processing
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