Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1982-08-16
1983-11-22
Davis, Curtis R.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208DIG2, 208 52CT, 208135, 502 66, 502 67, 502 68, 502 71, 502527, C10G 1105
Patent
active
044167652
ABSTRACT:
Octane and overall product quality improvement in catalytic cracking processes utilizing an essentially entirely amorphous cracking catalyst can be attained by using instead a catalyst comprising a minor amount, e.g. from about 0.01 to about 25 weight percent, of a class of crystalline zeolites characterized by a silica to alumina mole ratio greater than about 12 and a constraint index of about 1 to 12. The crystalline zeolites may be added to the conventional amorphous cracking catalyst in the cracking process by way of adding a separate additive composition in an amount which provides the zeolite component of the additive composition in said minor amount of the total catalyst in the cracking process.
REFERENCES:
patent: 3649521 (1972-03-01), Martin
patent: 3649522 (1972-03-01), Martin
patent: 4287048 (1981-09-01), Gladrow et al.
patent: 4309279 (1982-01-01), Chester et al.
patent: 4309280 (1982-01-01), Rosinski et al.
patent: 4368114 (1983-01-01), Chester et al.
Shankland and Schmitkons, "Determination of Activity and Selectivity of Cracking Catalyst", Proc. API 27 (III) 1947, pp. 57-77.
Chester Arthur W.
Cormier, Jr. William E.
Stover William A.
Davis Curtis R.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
Santini Dennis P.
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