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Effects of solvent characteristics on Wyodak coal liquefaction. Calendar year report for the period May--September 1976

Author
Silver, H. F.
Published
United States : [publisher not identified], 1976.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1976.
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Hurturbise, R. J.

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Summary
The investigation of the effects of solvent characteristics on Wyodak coal liquefaction was directed toward developing experimental procedures. A Wyodak coal-derived recycle solvent, received from the Wilsonville SRC plant, will be used as a reference solvent. Preliminary analyses have indicated the possible presence of tetralin and napthalene in this solvent. The Wilsonville solvent has been hydrogenated at two different severity levels over a Co--Mo catalyst. In addition, liquefaction experiments have been initiated using approximately 150 grams of Wyodak coal received from Wilsonville in approximately 300 grams of the Wilsonville Wyodak coal-derived solvent. Conversions measured, using procedures developed at Hydrocarbon Research Inc., Trenton, N. J., were much lower than observed at Wilsonville. Analysis of the preliminary results obtained indicate that increasing reaction time beyond twenty minutes has little effect on increasing the extent of Wyodak coal liquefaction. However, significant increases in conversion are obtained by increasing hydrogen pressure. These results are indicative of mass transfer limitations from hydrogen in gas bubbles to the coal liquid. Engineers at Autoclave Engineers, Inc. believe that the mass transfer characteristics of the reactor used in this program can be improved. An order has therefore been placed with Autoclave for an improved reactor agitator. Coal liquefaction runs will resume when the reactor modifications have been completed.
Report Numbers
FE-2367-2
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: EX-76-S-01-2367
OSTI Identifier 7217348
Research organization: Wyoming Univ., Laramie (USA).
View MARC record | catkey: 45369954