Mineral oils: processes and products – Fractionation – Deasphalting
Patent
1980-06-30
1981-07-21
Hearn, Brian E.
Mineral oils: processes and products
Fractionation
Deasphalting
208321, 208363, C10C 300, C10G 2178, B01D 338
Patent
active
042797390
ABSTRACT:
A process for separating a solvent from a bituminous material by pressure reduction and steam stripping without carry-over of entrained bituminous material. The fluid-like phase of bituminous material and solvent is reduced in pressure and introduced into a steam stripper. The solvent vaporizes upon pressure reduction and a mist of fine bituminous material particles forms and becomes dispersed in the vaporized solvent. The vaporized solvent and associated mist is separated from the bituminous material in the stripper and is withdrawn from the steam stripper and introduced into a condenser. The solvent and steam from the stripper condense, a substantial portion of the mist of entrained particles solidifies and an emulsion of water and fluid-like bituminous material from the mist forms. The liquid stream is withdrawn from the condenser and introduced into a separator. The liquid stream separates in the separator into an upper fraction comprising solvent, a middle fraction comprising emulsion and a lower fraction comprising water and the solidified particles of bituminous material. The liquid solvent is removed by passage over a weir in the separator and recovered. The emulsion, water and solids can be removed from the base of the separator for disposal.
REFERENCES:
patent: 2041275 (1936-05-01), Bray
patent: 2041278 (1936-05-01), Aldridge
patent: 2940920 (1960-06-01), Garwin
patent: 3403093 (1968-09-01), Mills
patent: 3830732 (1974-08-01), Gatsis
patent: 4101415 (1978-07-01), Crowley
patent: 4125459 (1978-11-01), Garwin
Addison William G.
Hearn Brian E.
Kerr-McGee Refining Corporation
LandOfFree
Process for separating bituminous materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for separating bituminous materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating bituminous materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2432912