Deashing of coal liquids with ceramic membrane microfiltration and diafiltration. Final quarterly technical progress report, October 1--December 31, 1993
Removal of mineral matter from liquid hydrocarbons derived from the direct liquefaction of coal is required for product acceptability. Current methods include critical solvent de-ashing and filtration, both of which produce an ash reject stream containing up to 15% of the liquid hydrocarbon product. This program is directed towards development of an improved process for de-ashing and recovery of coal-derived residual oil: the use of ceramic membranes for high-temperature microfiltration and diafiltration. Using laboratory-scale ceramic membrane modules, samples of a coal-derived residual oil containing ash will be processed by crossflow microfiltration, followed by solvent addition and refiltration (diafiltration). Recovery of de-ashed residual oil will be demonstrated. In this quarter, a detailed experimental outline was developed and sent to the two test site candidates, imperial Oil, Ltd., and the University of Kentucky`s Center for Applied Energy Research. Based on these experiments, a sample analysis approach with Consol, Inc. has been developed and coal liquid samples have been reserved for CeraMem which were produced at the DOE/PETC supported direct coal liquefaction process development unit at HRI, Inc. Quotes for testing and analytical work are expected in January and samples are expected in February.
- Research Organization:
- CeraMem Corporation, Waltham, MA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-92PC92149
- OSTI ID:
- 10145760
- Report Number(s):
- DOE/PC/92149-T5; ON: DE94010698; BR: AA2515150
- Resource Relation:
- Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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