Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1994-10-21
1996-07-23
Cross, E. Rollins
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208124, 208152, 502 5, 502 21, C10G 1104, B01J 2120, B01J 2390
Patent
active
055386245
ABSTRACT:
An improved catalytic process for heavy hydrocarbon conversion (usually but not necessarily in the presence of nickel and vanadium in the feedstock and on the catalyst) to produce lighter and selective molecular weight fractions. This process is specifically targeted as a means of retaining specialty high-valued, preferably microspherical additives (SHVA) which assist in attaining preferred conversion products such as gasoline, especially the recent gasolines meeting compositional requirements of "Reformulated Fuel".
Selective magnetic retention of these high-cost specialty additives can be achieved by incorporating into them selective magnetic moieties, preferably manganese, the heavy rare earths and superparamagnetic iron. Selective retention is achieved by passing spent or regenerated catalyst containing small amounts of these SHVAs through a magnetic separator, and selectively recycling them back to the circulating catalyst.
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Magnetic Methods for the Treatment of Minerals by J. Svaboda, published by Elseiver Science Publishing Co., Inc., NY, NY, (ISBNO-44-42811-9, vol, 8).
Ashland Inc.
Cross E. Rollins
Willson, Jr. Richard C.
Yildirim Bekir L.
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