Process for fluid catalytic cracking of oils

Details Process for fluid catalytic cracking of oils Process for fluid catalytic cracking of oils

1997-10-03

1999-05-18

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208113, 208156, 208 74, 208159, 208160, C10G11/00

Patent

active

059048379

ABSTRACT:
A process for the fluid catalytic cracking of oils, wherein an oil is brought into contact with catalyst particles using a fluid catalytic cracking reactor under the following conditions: a) a reaction zone outlet temperature of 580 to 630.degree. C., catalyst/oil ratio of 15 to 50 wt./wt., contact time of 0.1 to 3.0 sec.; b) a catalyst-concentrated phase temperature in the regenerating zone of 670 to 800.degree. C.; and c) a temperature of regenerated catalyst to be forwarded into the reaction zone of 610 to 665.degree. C.; thereby producing light fraction olefins. The process increases the cracking rate of heavy fractions of oils while producing a lessened amount of dry gases generated by the overcracking of light fractions to obtain light fraction olefins in a high yield.

REFERENCES:
patent: 3074878 (1963-01-01), Pappas
patent: 4419221 (1983-12-01), Castagnos, Jr. et al.
patent: 4859313 (1989-08-01), Lengemann et al.
patent: 4980053 (1990-12-01), Li et al.
patent: 5326465 (1994-07-01), Yongqing et al.
patent: 5462652 (1995-10-01), Wegerer

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