Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1989-04-07
1991-03-19
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502516, 502521, 502527, B01J 2904, B01J 3502
Patent
active
050010964
ABSTRACT:
The invention describes the preparation of novel cracking catalysts by surface coating conventional cracking catalysts with passivators that act as metals traps. The coating of passivators is weakly bound to the catalyst so as to permit the coating to continuously attrit off during catalytic cracking. The continuous flaking off of the coating exposes a new surface of the coating.
REFERENCES:
patent: 4222856 (1980-09-01), Hansel et al.
patent: 4289608 (1981-09-01), McArthur
patent: 4781816 (1988-11-01), Lee et al.
Chu Pochen
Huss, Jr. Albin
Kirker Garry W.
Dees Carl F.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Stone Richard D.
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