Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1975-02-21
1977-04-05
Crasanakis, George
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208210, 208251H, C10G 2302, C10G 2316
Patent
active
040160670
ABSTRACT:
This invention is concerned with removing metal and sulfur contaminants from residual oil fractions by catalytic contact in a novel dual bed system. In this process the oil is first contacted with a catalyst comprising a Group VIB metal and an iron group metal oxide, such as a mixture of cobalt and molybdenum oxides, composited with an alumina support that contains delta or theta phase alumina, the catalyst having at least 60% of its pore volume in pores of 100A to 200A diameter, at least about 5% of its pore volume in pores having a diameter greater than 500A, and a surface area up to about 110m.sup.2 /g. The oil is then contacted with a second catalyst of the high surface-area, cobalt-molybdenum on alumina type. The second catalyst has a major fraction of its pores in the 30 to 100A diameter range.
REFERENCES:
patent: 3530066 (1970-09-01), Kuwata et al.
patent: 3696027 (1972-10-01), Bridge
patent: 3725251 (1973-04-01), Alpert et al.
patent: 3841995 (1974-10-01), Bertolacini et al.
patent: 3876523 (1975-04-01), Rosinski et al.
Fischer Ronald H.
Milstein Donald
Crasanakis George
Frilette Vincent J.
Huggett Charles A.
Mobil Oil Corporation
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