Process for the production of LPG rich in olefins and high quali

Details Process for the production of LPG rich in olefins and high quali Process for the production of LPG rich in olefins and high quali

1993-03-12

1994-07-05

Breneman, R. Bruce

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208122, 502 65, 502 67, C10G 1105, C10G 1118, B01J 2908

Patent

active

053264657

ABSTRACT:
A process for producing LPG rich in propylene, butylenes and high octane number gasoline by catalytic conversion which comprises contacting the preheated hydrocarbon feedstock with a solid acidic catalyst which contains rare-earth-containing high silica zeolite having the structure of a pentasil (ZRP), rare-earth-Y zeolite (REY) and high silica Y zeolite in a riser or a fluidized bed reactor, at a temperature in the range of from about 480.degree. C. to about 550.degree. C., a pressure in the range of from about 130 KPa to about 350 KPa, a weight hourly space velocity in the range of 1 to 150 hr-1, a catalyst-to-oil ratio in the range of 4 to 15, and a steam-to-feedstock ratio in the range of 0.05 to 0.12:1 by weight.

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patent: 4880521 (1989-11-01), Scherzer
patent: 4880787 (1989-11-01), Bundens et al.

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