Transfer line quenching process and apparatus

Details Transfer line quenching process and apparatus Transfer line quenching process and apparatus

1991-07-12

1993-04-27

Morris, Theodore

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 48Q, 208157, C10G 916, C10G 918, C10G 1100

Patent

active

052059243

ABSTRACT:
A process and apparatus for fluidized catalytic cracking of heavy oils is disclosed. The long transfer line connecting the catalytic cracking reactor to the main fractionator is modified by incorporation of a quench zone, of enlarged cross sectional area, where liquid products are recycled from the main fractionator and injected into the transfer line, without wetting the walls of the transfer line near the reactor outlet. Quenching hot cracked products from the FCC reactor in the transfer line, improves yields, and permits higher catalytic cracking reactor temperatures.

REFERENCES:
patent: 3338821 (1967-08-01), Moyer et al.
patent: 4980051 (1990-12-01), Owen
patent: 5019239 (1991-05-01), Owen
patent: 5043058 (1991-08-01), Forgac et al.

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