Continuous bench-scale slurry catalyst testing: Direct coal liquification of Rawhide sub-bituminous coal. Technical report, July 1995--December 1995 Page: 3 of 152
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EXXON RESEARCH & ENGINEERING Synthetic Fuels - Exploratory
Funded by the U. S. Department of Energy TECHNICAL REPORT
Report _ERLA.,2KW.96 (2536)
Date May 24, 1996
Continuous Bench-Scale Slurry Catalyst Testing:
Direct Coal Liquification of Rawhide Sub-bituminous Coal
(Covering Operations from July 1995 - December 1995)
Contract Number DE-AC22-94PC94051
L. A. Coless, M. C. Poole, M. Y. Wen
Dispersed catalyst systems for direct coal liquefaction have been tested in the Recycle Coal
Liquefaction pilot plant Unit (RCLU) at the Exxon Research and Development Laboratories during
1994 and 1995. Work completed in 1994 has previously been reported. That work focused on
liquefaction of a subbituminous Rawhide coal, using molybdenum promoted iron catalysts. Work
performed in 1995 focused primarily on liquefaction of a second subbituminous coal, Black
Thunder, using molybdenum and molybdenum promoted iron catalyst systems.
These tests showed that dispersed catalyst systems are highly effective in the direct liquefaction of
subbituminous coals. Yields of distillable liquids ranged from 55 to 60 wt% of dry ash free coal,
depending on operating conditions and catalyst. The highest distillable liquid yields, 60 wt%, were
achieved with 100 wppm molybdenum on dry ash free coal. Molybdenum was found to be effective
as low as 50 wppm on dry ash free coal with distillable liquid yields of 55 to 58 wt% on dry ash free
coal. The combination of 0.25 wt% iron with 50 wppm did not show a measurable improvement in
distillable liquid yields compared with 50 wppm molybdenum alone.
Planning studies are needed to evaluate the economic potential for dispersed catalyst in direct coal
liquefaction service and to provide focus for future research.
Contact: M. C. Poole Contact:
Profs: BRLMCP Profs:
Telephone:_(504) 359-7756 Telephone:
EXXON RESEARCH & ENGINEERING COMPANY
To: ERDL Library Information Services Please Print Your Name & Address
Exxon Research & Development Labs
P. O. Box 2226, Baton Rouge, Louisiana 70821
Please send me a copy of Report No. ERLA.2KW96(2536)
Please send me a copy of the Supplement (Y/N)_
Profs: FLRPRKEE (EELISTS) For Any Distribution List Changes
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Coless, L.A.; Poole, M.C. & Wen, M.Y. Continuous bench-scale slurry catalyst testing: Direct coal liquification of Rawhide sub-bituminous coal. Technical report, July 1995--December 1995, report, May 24, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc682854/m1/3/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.