Method for deagglomerating and re-exposing catalyst in a fluid b

Details Method for deagglomerating and re-exposing catalyst in a fluid b Method for deagglomerating and re-exposing catalyst in a fluid b

1990-11-15

1992-06-23

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Including segregation of diverse particles

208113, 209138, 423507, 502 20, 502 30, 502 34, 502518, 549256, 549257, 549258, 549259, 549260, 558320, B01J 3872, B01J 3804, C07D30734, C07C25300

Patent

active

051242915

ABSTRACT:
A fluid bed catalyst which has lost activity or fluidization quality through agglomeration, contamination, or a physical or chemical change on the surface of the catalyst is deagglomerated and/or its surface re-exposed, by contacting the fluidized catalyst with a high velocity gas sufficient to cause multiple collisions among the catalyst particles and thereby deagglomerating the particles and/or abrading the surface of the particles to expose fresh catalyst.

REFERENCES:
patent: 2605234 (1952-07-01), Friedman
patent: 2651600 (1953-09-01), Taff et al.
patent: 2958650 (1960-11-01), Dart et al.

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