Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1990-10-19
1993-03-30
Morris, Theodore
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208 52CT, 208253, 208149, 208152, 502 5, 502 21, C10G 5904, B01J 3734, B01J 2034, B01J 3872
Patent
active
051980983
ABSTRACT:
An improved catalytic process for heavy hydrocarbon conversion, (usually, but not necessarily, in the presence of nickel and vanadium on the catalyst and in the feedstock.) to produce lighter molecular weight fractions. Manganese, which has paramagnetic properties, is added so it progressively accumulates on aged catalyst, and enhances magnetic separation of aged catalyst, to increase activity and improve selectivity of remaining catalyst which is recycled. Manganese acts as a "magnetic hook" to separate more magnetic, older, less catalytically active and less selective, higher-metals-containing catalyst particulates from less-magnetically-active, lower-metal-containing, more catalytically active and selective catalysts fractions, which are then recycled back to the unit.
REFERENCES:
patent: 2065460 (1936-12-01), Johnson
patent: 2956004 (1960-10-01), Conn
patent: 3531413 (1970-09-01), Rosensweig
patent: 3917538 (1975-11-01), Rosensweig
patent: 4334920 (1982-06-01), Mori
patent: 4360441 (1982-11-01), Borrelli
patent: 4432890 (1984-02-01), Beck
patent: 4523047 (1985-06-01), Chester et al.
patent: 4695392 (1987-09-01), Whitehead
patent: 4777031 (1988-10-01), Senecal
patent: 4784752 (1988-11-01), Ramamoorthy et al.
patent: 4810401 (1989-03-01), Mair
patent: 4824587 (1989-04-01), Kwon
patent: 4827945 (1989-05-01), Groman
patent: 4835128 (1989-05-01), Child et al.
patent: 4839593 (1989-06-01), Spies
patent: 4878132 (1989-10-01), Aratani
patent: 4923688 (1990-05-01), Iannicelli
patent: 4956075 (1990-09-01), Angevine
patent: 5106486 (1992-04-01), Hettinger
"Fluid Dynamics and Science of Magnetic Liquids", R. E. Rosensweig, Advances in Electronics and Electron Physics, vol. 48 (1979) pp. 103-199, Academic Press.
Ashland Oil Inc.
Hailey P. L.
Morris Theodore
Willison, Jr. Richard C.
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