Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1992-12-18
1994-12-06
Lieberman, Paul
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208 24, 208 27, 208 46, 208 59, C10G 7338, C10G 4720
Patent
active
053707885
ABSTRACT:
Charge waxy hydrocarbon is converted to lube oil base stock by hydrotreating in the presence of catalyst characterized by its ability to convert a waxy hydrocarbon distillate of high pour point to a hydrocarbon product of reduced pour point and high viscosity index, suitable for use as a lube oil base stock, which comprises a support containing about 2-50 w % silica and 50-98 w % alumina, bearing 2-10 w % of a non-noble Group VIII metal, as metal, metal oxide, or metal sulfide, about 8-20 w % of a Group VI-B metal, as metal, metal oxide, or metal sulfide, less than 0.5% halogen; and 0-2 w % of phosphorus, the atom ratio of Group VIII metal to Group VI-B metal being about 0.3-2:1, said catalyst being characterized by a micropore mode of about 60-130 .ANG. diameter, a Total Surface Area of about 150-300 m.sup.2 /g, a Total Pore Volume of about 0.45-0.9 cc/g and a Pore Volume of pores with pore diameter >500 .ANG. of about 0.02-0.25 cc/g.
REFERENCES:
patent: 3803028 (1974-04-01), Mead et al.
patent: 3896025 (1975-07-01), Coleman et al.
patent: 4648958 (1987-03-01), Ward
Dai Pei-Shing E.
Durkin Joseph A.
Martin Bobby R.
Douyon Lorna M.
Kendrick Cynthia L.
Lieberman Paul
Priem Kenneth R.
Seutter Carl G.
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