Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1974-09-23
1976-11-16
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 18, 208111, 252458, 252477R, C10G 4100, C10G 1306, C10G 3702
Patent
active
039922839
ABSTRACT:
A process for hydrocracking petroleum fractions to produce lubricating oils of suitable viscosity index comprising subjecting a petroleum fraction to hydrocracking conditions selected to minimize the formation of non-lube oil fractions in the presence of a first hydrocracking catalyst, fractionating the resulting hydrocracked lube oil stock into a plurality of fractions having different boiling ranges, subjecting a higher boiling fraction to hydrocracking conditions in the presence of a second hydrocracking catalyst and blending the resulting lube oil fractions to produce the lube oil base stocks of the desired viscosity and viscosity index.
REFERENCES:
patent: 3308055 (1967-03-01), Kozlowski
patent: 3444071 (1969-05-01), Langhout
patent: 3463724 (1969-08-01), Langlois et al.
patent: 3530061 (1970-09-01), Orkin et al.
patent: 3562149 (1971-02-01), Bryson et al.
patent: 3617482 (1971-11-01), Egan
patent: 3617484 (1971-11-01), Thompson et al.
patent: 3732156 (1973-05-01), Bennett et al.
patent: 3793191 (1974-02-01), Billon et al.
Gantz Delbert E.
Hoatson Jr. James R.
McBride Thomas K.
Page II William H.
Schmitkons G. E.
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