Process for the removal of solid particulate materials from crud

Details Process for the removal of solid particulate materials from crud Process for the removal of solid particulate materials from crud

1978-06-07

1979-07-31

Crasanakis, George

Mineral oils: processes and products

Refining

C10G 2100

Patent

active

041629655

ABSTRACT:
This invention relates to a process for removing finely divided insoluble particulate materials from crude shale oils. A feed comprising crude shale oil that contains insoluble particulate material is mixed with a solvent and thereafter separated in a first separation zone into a first light fraction comprising the crude shale oil and the solvent and a first heavy fraction comprising the insoluble particulate material, some crude shale oil and some dissolving solvent. The first light fraction then is withdrawn and subjected to a second separation in a second separation zone. In the second separation zone, the first light fraction is separated into a plurality of fractions of crude shale oil and solvent. The crude shale oil fractions then are separated, withdrawn and subjected to subsequent hydrorefining, while the solvent is recovered and recycled to provide additional feed mixture.

REFERENCES:
patent: 3527692 (1970-09-01), Titus
patent: 3607721 (1971-09-01), Nagy

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