Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1992-10-26
1994-02-15
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
208 52CT, 208164, 208113, 422144, 502 21, 502 42, 502516, B01J 3830, B01J 2938, B01J 3872, C10G 1118
Patent
active
052866912
ABSTRACT:
A process for demetallizing metals contaminated FCC catalyst in an FCC regenerator. A metals getter additive, with higher settling velocity, is added to the regenerator, to remove metals from FCC catalyst by solid-solid interaction. The FCC catalyst forms a light, discrete, dense phase fluidized bed on top of a fluidized bed of additive. FCC catalyst is recycled to the cracking reactor from the top fluidized bed, while additive can be withdrawn from the lower fluidized bed for disposal or for metals recovery and recycle. Additive can be optimized for metals removal and will not dilute the cracking catalyst in the FCC reactor.
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patent: 4895636 (1990-01-01), Chen et al.
patent: 4944865 (1990-07-01), Occelli
patent: 5021145 (1991-06-01), Chapple
patent: 5057205 (1991-10-01), Chin et al.
patent: 5110775 (1992-05-01), Owen
Harandi Mohsen N.
Herbst Joseph A.
Owen Hartley
Schipper Paul H.
Thomson Robert T.
Keen Malcolm D.
Konopka Paul E.
McKillop Alexander J.
Mobil Oil Coproration
Stone Richard D.
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