Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Including segregation of diverse particles
Patent
1986-12-04
1989-05-30
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Including segregation of diverse particles
208 52CT, 208113, 502 5, 502 38, 502 41, 502516, 502521, B01J 3872, B01J 2120, C10G 1118
Patent
active
048351288
ABSTRACT:
A system is provided for passivating metals, such as vanadium, deposited on a catalyst during a conversion reaction. Spent catalyst particles containing the metal deposits are introduced into a regenerator, and passivating particles containing the passivating materials are also introduced into the regenerator. The passivating particles and the catalyst particles are separated after they have exited from the regenerator. At least a portion of the separated passivating particles are recycled to the regenerator, and the regenerated, separated catalyst particles are reintroduced into a reaction zone, such as a riser conversion zone.
REFERENCES:
patent: 2567207 (1951-09-01), Hoge
patent: 4257919 (1981-03-01), Roberts et al.
patent: 4446011 (1984-05-01), Wheelock et al.
patent: 4451355 (1984-05-01), Mitchell et al.
Child Jonathan E.
Sapre Ajit V.
Keen Malcolm D.
Konopka Paul E.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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