Fluidized-bed catalytic cracking process for a hydrocarbon feeds

Details Fluidized-bed catalytic cracking process for a hydrocarbon feeds Fluidized-bed catalytic cracking process for a hydrocarbon feeds

1995-01-18

1997-08-26

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208113, 208114, 208127, 208159, 208164, C10G 1118

Patent

active

056607164

ABSTRACT:
A fluidized-bed process for catalytic cracking of a hydrocarbon feedstock where the hydrocarbon feedstock, particularly a feedstock with a high content of basic nitrogen compounds, and a catalyst circulate in the tubular zone co-currently from the top to the bottom, where the catalyst, which is under equilibrium conditions at 150.degree. C., and a pressure of 5 mbar, adsorbs less than 250 micromols, and preferably less than 50 micromols, of pyridine/g, and whose pyridine retention, after heating at 350.degree. C. under vacuum, does not exceed 20%, and preferably not 10%, of the amount adsorbed at 150.degree. C.

REFERENCES:
patent: 3835029 (1974-09-01), Larson
patent: 4411773 (1983-10-01), Gross
patent: 4412914 (1983-11-01), Hettinger, Jr. et al.
patent: 4693808 (1987-09-01), Dewitz
patent: 4724067 (1988-02-01), Raatz et al.
English Abstract of Japan Patent Publication A-3,130,236 [Database WPI, Week 9128, Derwent Publications Ltd., London, GB, AN 204749] Jun. 1991.

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