Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1982-01-29
1983-05-03
Konopka, P. E.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252411R, 252416, 208 52CT, 208113, 208120, B01J 2938, B01J 2120, C10G 1118, C10G 1105
Patent
active
043820158
ABSTRACT:
A contaminating metal on a cracking catalyst used for the cracking of hydrocarbons is passivated by contacting the catalyst with a hydrocarbon gas or mixture of gases comprising molecules of three carbon atoms or less at passivation reaction conditions prior to the cycling of the catalyst to the cracking zone, which conditions include a temperature in excess of 1300.degree. F.
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Deposited Metals Poison F.C.C. Catalysts--R. N. Cimbalo et al., Oil & Gas Journal, 5/15/72, vol. 70, No. 20, pp. 112-122.
Castillo Carmen
Hayes John C.
Hoatson Jr. James R.
Konopka P. E.
Morris Louis A.
Page II William H.
UOP Inc.
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