Control of a catalytic cracking unit

Details Control of a catalytic cracking unit Control of a catalytic cracking unit

1982-09-29

1984-03-20

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208DIG1, 208163, 422105, 422139, B01J 826, C10G 1118

Patent

active

044379773

ABSTRACT:
In a catalytic cracking unit, the amount of the products removed from the fractionator associated with the catalytic cracking unit which has a boiling point above the highest boiling point of the desired product is calculated based on internal reflux to vapor ratios in various portions of the fractionator. The conversion of the catalytic cracking unit (the amount of the feed to the reactor having a boiling point above the highest boiling point of the desired product which is converted to a product having a boiling point below the highest boiling point of the desired product) is then determined and the reactor is controlled so as to maintain the actual conversion substantially equal to a desired conversion.

REFERENCES:
patent: 3175968 (1965-03-01), Berger
patent: 3213014 (1965-10-01), Atkinson et al.
patent: 3316170 (1967-04-01), Stewart et al.
patent: 3769203 (1973-10-01), Lee et al.
patent: 4345993 (1982-08-01), Stewart
patent: 4350569 (1982-09-01), Furr
patent: 4367121 (1983-01-01), Furr

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