Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1991-01-28
1992-04-21
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
208164, 502 41, 502 42, B01J 3834, B01J 3836, B01J 2938, C10G 1118
Patent
active
051067994
ABSTRACT:
A process and apparatus for fluidized bed combustion using a dense phase combustion zone over a dilute phase combustion zone. When used to regenerate FCC catalyst containing coke with relatively large amounts of NO.sub.x precursors, the catalyst is added to and partially regenerated in the dense phase zone and then falls down into the dilute phase zone. Most of the combustion air is added to the dilute phase and rises into and fluidizes the dense phase zone. NO.sub.x formed in the dilute phase is reduced to N.sub.2 in the dense phase.
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Green Gary J.
Yan Tsoung Y.
Konopka Paul E.
McKillop A. J.
Mobil Oil Corporation
Speciale C. J.
Stone Richard D.
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