Hydrocracking process employing low acidity Y zeolite

Details Hydrocracking process employing low acidity Y zeolite Hydrocracking process employing low acidity Y zeolite

1989-02-28

1990-01-16

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208112, 208143, 502 63, 502 85, 502 65, C10G 2300, C10G 4720

Patent

active

048941425

ABSTRACT:
A highly selective hydrocracking process providing increased yields of middle distillates is disclosed. The process employs a catalyst comprising a Y-type hydrogen form zeolite having a unit cell size between about 24.20 Angstroms and 24.40 Angstroms, a metal hydrogenation component and refractory oxide support materials. The catalyst is characterized by low ammonia temperature programmed desorption (TPD) acidity strength values. This may be achieved by dehydroxylation caused by a dry calcination.

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Pp. 140-147 of American Chemical Society Monograph 171, Jule A. Rabo, editor.

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