Process for separating bituminous materials with solvent recover

Details Process for separating bituminous materials with solvent recover Process for separating bituminous materials with solvent recover

1980-06-30

1981-07-14

Hearn, Brian E.

Mineral oils: processes and products

Fractionation

Deasphalting

208321, C10C 300, C10C 308

Patent

active

042785294

ABSTRACT:
A process for separating a solvent from a bituminous material by pressure reduction without carry-over of bituminous material. The fluid-like phase comprising bituminous material and solvent is reduced in pressure by passage through a pressure reduction valve and introduced into a steam stripper. The pressure reduction vaporizes part of the solvent and also disperses a mist of fine bituminous particles in the solvent. The solvent and mist are withdrawn from the steam stripper and introduced into a separation zone wherein they are caused to flow countercurrently to another stream of fluid-like bituminous material. The fluid-like bituminous material contacts the solvent and scrubs the fine bituminous material particles therefrom. The solvent is withdrawn and recovered. The fluid-like stream containing the bituminous particles can be recycled until the concentration is such that additional particles are not separated from the solvent after which a portion is bled off and fresh fluid-like material is added.

REFERENCES:
patent: 2041275 (1936-05-01), Bray
patent: 2940920 (1960-06-01), Garwin
patent: 3403093 (1968-09-01), Mills
patent: 3830732 (1974-08-01), Gatsis
patent: 3847751 (1974-11-01), Godino
patent: 4017383 (1977-04-01), Beavon
patent: 4101415 (1978-07-01), Crowley
patent: 4125459 (1978-11-01), Garwin

Affiliated with

Also associated with

Rating

Process for separating bituminous materials with solvent recover 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 with solvent recover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating bituminous materials with solvent recover will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2163643