Two-catalyst hydrocracking process

Details Two-catalyst hydrocracking process Two-catalyst hydrocracking process

C - Chemistry, Metallurgy

10

G

196/103

C10G 65/10 (2006.01) C10G 47/20 (2006.01)

Patent

CA 1128444

TWO-CATALYST HYDROCRACKING PROCESS Abstract of the Disclosure The process comprises contacting a hydrocarbon feedstock containing a substantial amount of organic nitrogen-containing compounds in a first reaction zone under hydrocracking conditions and in the presence of hydrogen with a first catalyst comprising nickel and molybdenum or nickel and tungsten, their oxides, and/or their sulfides on a co-catalytic acidic cracking support comprising ultrastable, large-pore crystalline alumino- silicate material and a silica-alumina matrix to produce a first hydrocracked effluent and contacting said first hydrocracked effluent in a second reaction zone under hydrocracking conditions and in the presence of hydrogen with a second catalyst comprising cobalt and molybdenum, their oxides, and/or their sulfides on a co-catalytic acidic cracking support comprising ultrastable, large- pore crystalline aluminosilicate material and a silica- alumina matrix to produce a second hydrocracked effluent. Preferably, the first catalyst comprises nickel and tungsten deposed on the co-catalytic acidic cracking support. In one embodiment of the process, the second cata- lyst is a catalyst that has been deactivated and then regenerated prior to its use in the process.

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