Intermittent catalyst addition system

Details Intermittent catalyst addition system Intermittent catalyst addition system

1976-08-23

1978-04-04

Wolk, Morris O.

Chemistry: physical processes

Physical processes

Crystallization

23288S, 214 17CB, 208152, 222 70, 302 55, B01J 818, C10G 932

Patent

active

040825132

ABSTRACT:
Catalyst, e.g., for a fluid catalytic cracker, is added automatically by a system consisting of an addition hopper which is periodically fed by gravity from a storage hopper, sealed off from the supply, and then pressurized with air to discharge its contents to the carrier gas line feeding the hydrocarbon conversion unit, e.g., the regenerator section of a Fluid Catalytic Cracking Unit. Sequencing can be by electronic timer-solenoid (or pneumatic) valve system.

REFERENCES:
patent: 2536402 (1951-01-01), Voorhees
patent: 2695212 (1954-11-01), Berg
patent: 2897009 (1959-07-01), Gianniny, Jr. et al.
patent: 3090593 (1963-05-01), Pro
patent: 3437384 (1969-04-01), Bozich
patent: 3850582 (1974-11-01), Luckenbach

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