Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1988-10-31
1990-02-06
McFarlane, Anthony
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208121, 502 67, C10G 1105
Patent
active
048986623
ABSTRACT:
A catalytic cracking process is disclosed in which octane improvement is attained by the addition to conventional cracking catalysts of small amounts of additive catalyst comprising a class of zeolites characterized by a silica to alumina mole ratio greater than about 12 and a Constraint Index of about 1 to 12 bound in a matrix chosen such that the matrix component forms a thermodynamically favored compound with selected cations. Sustained catalytic activity is achieved by pre-exchanging the catalyst to a high level of selected cation loading. By extending the active life of the additive catalyst, markedly lower makeup catalyst addition rates are required.
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Chu Pochen
Mizrahi Sadi
Furr Jr. Robert B.
McFarlane Anthony
McKillop Alexander J.
Mobil Oil Corp.
Speciale Charles J.
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