Catalytic hydrocracking
AssigneeMobil Oil Corporation
InventorsEmmerson Bowes, Allan W. Peters
Life of this patent
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Abstract
Catalytic hydrocracking of polynuclear aromatic containing feedstocks is conducted over catalysts comprising zeolites in intimate contact with a nickel-tungsten hydrogenation component. Said zeolites are characterized by a silica to alumina mole ratio of at least 12, a constraint index within the approximate range of 1 to 12 and an alpha value of between about 25 and 200.
Claims10
A process for hydrocracking a polynuclear aromatic containing feedstock having a %C.sub.A within the range of from about 30% to about 100% which comprises contacting said feedstock under conversion conditions including a temperature of between about 400.degree. F. and 950.degree. F., a pressure of between about 100 psig and 2000 psig, a LHSV of between about 0.1 and 10, and a molar ratio of hydrogen to hydrocarbon charge of between about 2 and 80 with a catalyst comprising one or more members of a class of zeolites characterized by a silica to alumina mole ratio of at least 12, a constraint index in the approximate range of 1 to 12 and an alpha value of between about 25 and 200 and wherein said zeolite is in intimate contact with a nickel-tungsten hydrogenation component.
Dependencies are inferred from the claim text.