Catalytic process for hydrocarbon cracking using synthetic mesop

Details Catalytic process for hydrocarbon cracking using synthetic mesop Catalytic process for hydrocarbon cracking using synthetic mesop

1991-06-21

1993-08-03

Morris, Theodore

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208113, 208118, 208119, 208120, 208 70, C10G 1105

Patent

active

052325806

ABSTRACT:
A process for naphtha cracking employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.
An improved cracking reaction is provided for catalytic conversion of hydrocarbon feedstock which comprises contacting the feedstock under catalytic conversion conditions with acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The cracking reaction is very selective, especially when conducted at temperature of about 425.degree. to 650.degree. C.

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