FCC Reactor with a downflow reactor riser

Details FCC Reactor with a downflow reactor riser FCC Reactor with a downflow reactor riser

1981-04-14

1983-05-31

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208120, 208164, 252417, 422142, 422145, C10G 1118

Patent

active

043859852

ABSTRACT:
A fluid catalytic cracking (FCC) process and apparatus using a riser and a reactor for cracking of petroleum feeds in the presence of a catalyst and a regenerator for regenerating the spent catalyst are improved by providing a downflow riser. The downflow riser assures uniform distribution of the catalyst throughout the feed, decreases contact time of the catalyst with the feed and decreases the amount of coke made in the process.

REFERENCES:
patent: 2282855 (1942-05-01), Egloff
patent: 2965454 (1960-12-01), Harper
patent: 3074878 (1963-01-01), Pappas
patent: 3120484 (1964-02-01), Mills et al.
patent: 3492221 (1970-01-01), Pfeiffer
patent: 3565790 (1971-02-01), Schwarzenbek
patent: 3607126 (1971-09-01), Pfeiffer
patent: 3607730 (1971-09-01), Pfeiffer
patent: 3826738 (1974-07-01), Zenz
patent: 3835029 (1974-09-01), Larson
patent: 4283273 (1981-08-01), Owen

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