Main column separation of FCC product effluent

Details Main column separation of FCC product effluent Main column separation of FCC product effluent

1976-01-26

1977-01-18

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

208103, 208104, 208105, 208355, C10G 3700

Patent

active

040038220

ABSTRACT:
Separation of the catalyst-containing product effluent from a fluid catalytic cracking unit is effected in the main column by a technique which involves removing a light naphtha fraction as the single overhead stream and separately withdrawing a heavy naphtha fraction as a lower side-cut. The latter is stripped of light naphtha (for recycle to the main column) and recovered as a product stream. Preferably a portion of the heavy naphtha fraction (as withdrawn) is cooled and combined with the light naphtha overhead reflux stream.

REFERENCES:
patent: 2398496 (1946-04-01), Edmister et al.
patent: 3310487 (1967-03-01), Johnson et al.
patent: 3494861 (1970-02-01), Munro

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