Mineral oils: processes and products – Fractionation – Deasphalting
Patent
1980-06-30
1981-12-15
Hearn, Brian E.
Mineral oils: processes and products
Fractionation
Deasphalting
208 45, C10C 300
Patent
active
043058140
ABSTRACT:
An energy efficient process for separating a hydrocarbonaceous material into various fractions. The hydrocarbonaceous material is admixed with a solvent and the mixture is introduced into a first separation zone maintained at an elevated first temperature and pressure. The feed mixture separates into a first light phase comprising solvent and at least a portion of the lightest hydrocarbonaceous material and a first heavy phase comprising the remainder of the hydrocarbonaceous material and some solvent. The first heavy phase is introduced into a second separation zone maintained at a second temperature level above the first temperature level and at an elevated pressure. The first heavy phase separates into a second light phase comprising solvent and a second heavy phase comprising at least a portion of the hydrocarbonaceous material. The separated hydrocarbonaceous material fractions are recovered.
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patent: 3775292 (1973-11-01), Watkins
patent: 3830732 (1974-08-01), Gatsis
patent: 4124286 (1978-11-01), Nolley
patent: 4125459 (1978-11-01), Garwin
patent: 4214975 (1980-07-01), Davis
patent: 4239616 (1980-12-01), Gearhart
Addison William G.
Hearn Brian E.
Kerr-McGee Refining Corporation
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