Deasphalting, deashing and upgrading of coal liquids. Final annual report, October 1, 1979-March 31, 1980
UOP solvent deashing technology was used to reduce the ash content of two coal liquefaction products to less than 20 ppM. One feedstock was a solvated coal slurry prepared by a modified UOP liquefaction process. The second was SRC-I filter feed. The lowest deashing rejection with the SRC-I filter feed was 18.8 wt %. It is possible that this rejection may be lowered to 15 wt % or less either through solvent modification or solvent ratio adjustment. Both UOP and the SRC-I deashed oils were successfully hydrotreated in fixed bed operations. The SRC-I deashed oil yielded hydrotreated products containing 10.0 and 10.2 wt % hydrogen. The UOP deashed oils yielded products containing 10.2 and 10.7 wt % hydrogen. The latter were recycled as a coal liquefaction solvent. This modified UOP liquefaction process demonstrated a 57 wt % yield (MAF basis) of high quality syncrude from Illinois No. 6 coal. The hydrotreated UOP coal oils were used for fluid catalytic cracking studies. Because of their low hydrogen content, conversions and naphtha yields were lower than those obtained commercially from petroleum feedstocks. It is concluded that the best route for downstream processing of deashed coal oils is catalytic hydrocracking.
- Research Organization:
- UOP, Inc., Des Plaines, IL (USA). Corporate Research Center
- DOE Contract Number:
- AC22-78ET13403
- OSTI ID:
- 6778108
- Report Number(s):
- FE-2645-07
- Country of Publication:
- United States
- Language:
- English
Similar Records
Deasphalting, deashing, and upgrading of coal liquids. Quarterly technical progress report, April-June 1979
Deasphalting, deashing and upgrading of coal liquids. Quarterly technical progress report, October-December 1979
Related Subjects
COAL LIQUIDS
CATALYTIC CRACKING
DEASHING
HYDROGENATION
REFINING
ASPHALTS
COAL LIQUEFACTION
EXPERIMENTAL DATA
REMOVAL
YIELDS
BITUMENS
CHEMICAL REACTIONS
CRACKING
DATA
DECOMPOSITION
FLUIDS
INFORMATION
LIQUEFACTION
LIQUIDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PROCESSING
PYROLYSIS
TAR
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction