FCC process employing low unit cell size y-zeolites

Details FCC process employing low unit cell size y-zeolites FCC process employing low unit cell size y-zeolites

1994-03-07

1996-08-27

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208111, C01G 4512

Patent

active

055498132

ABSTRACT:
Disclosed is a fluid catalytic cracking process for cracking gas oils and naphtha which provides improved selectivity for C.sub.3 -C.sub.5 olefins employing a catalyst comprising a novel zeolite characterized by a large number of secondary pores, a substantially decreased Lattice Constant of below about 24.19 .ANG., and a substantially decreased Acid Site Density, attained by hydrothermal and acid-treating of an ultrastable Y-zeolite.

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patent: 5308472 (1994-05-01), Dai et al.
patent: 5354452 (1994-10-01), Dai et al.

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