Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1987-08-12
1989-03-14
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
208113, 208120, 208164, 423235, 502 21, 502 41, B01J 3836, B01J 2938, C10G 1118, C01B 2120
Patent
active
048124303
ABSTRACT:
An FCC regenerator comprising a first dense bed coke combuster, a dilute phase transport riser, and a second dense bed operates with selective addition of CO combustion catalyst downstream of the coke combustor and preferably into the dilute phase transport riser. The process and apparatus permits maintenance of a reducing atmosphere in the first dense bed, which promotes conversion of NO.sub.x compounds to nitrogen within the FCC regenerator. Coke can be burned in the first dense bed, the transport riser, or the second dense bed, so that the average catalyst temperature and steaming severity is reduced.
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Lexpat Search (35 Pats. Found & Summarized in search report).
Konopka Paul E.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Stone Richard D.
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