Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1992-01-31
1994-10-25
Myers, Helane
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 95, 208100, C10G 4508
Patent
active
053586271
ABSTRACT:
High quality lubricating oil base stocks are produced from crude oils that contain significant concentrations of aromatic compounds in their higher boiling fractions. First, the crude is fractionated. After the residua fraction has been deasphalted, it is combined with the gas oil fraction. The resultant combined fraction is hydrocracked. The hydrocrackate is separated into a light fraction and a heavy fraction. The heavy fraction is hydrodewaxed, then hydrofinished. The hydrofinished product is combined with the light fraction and distilled into products including middle distillate fuel products and lubricating oil base stocks. The lubricating oil base stocks have high VI.
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Hunter Michael G.
Mears David E.
Hartman Charles L.
Myers Helane
Thompson Alan H.
Union Oil Company of California
Wirzbicki Gregory F.
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