Mineral oils: processes and products – Phenolic or toxic oils
Patent
1981-07-21
1983-11-15
Davis, Curtis R.
Mineral oils: processes and products
Phenolic or toxic oils
208 11R, 210806, C10G 100, C10G 3110
Patent
active
044154305
ABSTRACT:
A two-stage dedusting process is provided for dedusting heavy oil derived from solid hydrocarbon-containing material, such as oil shale, coal, or tar sand. In the process, heavy oil is fed to a first centrifuge where it is separated into a purified stream of heavy oil and a residual dust-enriched stream. The residual dust-enriched stream is fed to a second centrifuge where it is separated into a second purified stream of heavy oil and an even more highly concentrated, dust-enriched, second residual stream. Light oil derived from the solid hydrocarbon-containing material can be injected into the centrifuges to flush out the sticky dust-enriched residual streams. The concentrated, dust-enriched, second residual stream can be dried and combusted for use as solid heat carrier material in the retort.
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Caldarola Glenn A.
Davis Curtis R.
Magidson William H.
McClain William T.
Standard Oil Company (Indiana)
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