Method for catalytic cracking heavy oils

Details Method for catalytic cracking heavy oils Method for catalytic cracking heavy oils

1979-01-15

1980-08-19

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 72, 208 74, 208 75, 208 78, C10G 1104, B01J 824

Patent

active

042183065

ABSTRACT:
A riser cracking operation is described for the production of gasoline and distillate material by the combination of cracking fresh gas oil charged to the base of a riser cracking zone for admixture with freshly regenerated catalyst to form a suspension thereof at an elevated cracking temperature, a second hydrocarbon fraction of more difficult cracking characteristics is charged to the suspension rising in the riser cracking zone at a point selected from 10 to about 30 feet above the riser bottom and the riser inlet temperature is restricted to be within the range of 900.degree. to 1000.degree. F.

REFERENCES:
patent: 3182011 (1965-05-01), Friedman
patent: 3617497 (1971-11-01), Bryson et al.
patent: 3847793 (1974-11-01), Schwartz et al.
patent: 3856659 (1974-12-01), Owen
patent: 3886060 (1975-05-01), Owen
patent: 3894936 (1975-07-01), Owen
patent: 3896024 (1975-07-01), Nace
patent: 3904548 (1975-09-01), Fagan et al.
patent: 4147617 (1979-04-01), Nace

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