Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1993-06-21
1995-11-21
Pal, Asok
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 28, 208 61, 208111, C10G 4510, C10G 6508, C10G 6910
Patent
active
054683688
ABSTRACT:
A bottoms fraction of fuels hydrocracking which boils above about 600.degree. F. and contains at least 10 wt. % aromatics is converted to a reduced aromatics lube/base stock product over a catalyst comprising a crystalline material which exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams anhydrous crystal at 50 torr and 25.degree. C. and a-hydrogenation-dehydrogenation functionality, preferably palladium, under high pressure conditions sufficient to reduce the aromatics content to about 10 wt. %. The bottoms fraction is dewaxed prior to high pressure hydroprocessing over a catalyst comprising HZSM-5 to reduce the pour point of the fraction to about 20.degree. F. Typically, the bottoms fraction is produced in a moderate pressure fuels hydrocracking process over a bifunctional amorphous catalyst.
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Ser. No. 07/734,826 filed on Jul. 24, 1991, now U.S. Pat. No. 5,288,395.
Ser. No. 07/734,850 filed on Jul. 24, 1991 now U.S. Pat. No. 5,281,328.
Baker, Jr. Charles L.
Chu Cynthia T.
Mazzone Dominick N.
Page Nancy M.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
Pal Asok
Sinnott Jessica M.
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