Two-stage centrifugal dedusting process
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.
- Assignee:
- Standard Oil Co. (Ind.)
- Patent Number(s):
- US 4415430
- OSTI ID:
- 5360205
- Country of Publication:
- United States
- Language:
- English
Similar Records
Drying and dedusting process
Polar solvent extraction and dedusting process