Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1976-12-27
1977-10-18
Crasanakis, George
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208210, C10G 2302
Patent
active
040545083
ABSTRACT:
This invention is concerned with removing metal and sulfur contaminants from residual oil fractions by catalytic contact with two different catalysts in the presence of hydrogen. In this process, the oil is first contacted with the major fraction of 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, the catalyst having at least 60% of its pore volume in pores of 100A to 200A diameter and at least about 5% of its pore volume in pores having a diameter greater than 500A. The oil is then contacted with a secondcatalyst of the high surface-area, cobalt-molybdenum on alumina type having a major fraction of its pores in the 30 to 100A diameter range. Finally, the oil is contacted with the remainder of the large-pore catalyst.
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patent: 4014821 (1977-03-01), Hamner
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Fischer Ronald H.
Milstein Donald
Crasanakis George
Frilette Vincent J.
Huggett Charles A.
Mobil Oil Corporation
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