Catalytic hydrogenation of coal-derived liquids. Interim report, September-November 1981
An experimental study was completed to determine the optimum relationship between temperature and space velocity for our hydrotreating-hydrocracking catalyst developed for the denitrogenation of Solvent Refined Coal (SRC-II). The temperature range was 350 to 500/sup 0/C, LHSV was 0.25 to 2.5 and the throughput was held constant at 4500 ml/60 ml of catalyst. The surprising result is that 500/sup 0/C and 1.25 LHSV is the best condition. Conditions were finally found under which a commercially available catalyst will give acceptable denitrogenation of SRC. It is Harshaw's HT400 E 1/32'' and the unique factor is to add 1.5 volume percent of water to the SRC feed. When operated in this manner, the catalyst gave <0.3 wt % nitrogen in the product for 140 hours, was regenerated and did even better. Without water addition, specification denitrogenation was obtained for only forty hours. The hydrotreating-hydrocracking catalyst that we have developed has demonstrated hundreds of hours of use and dozens of regnerations, both in batch and trickle bed reactors. This appears to be an economically attractive way to convert solvent refined coal into an acceptable feedstock for a conventional petroleum refinery and thus permit coal to reduce somewhat the burden on petroleum for transportation grade fuels.
- Research Organization:
- Montana State Univ., Bozeman (USA). Dept. of Chemical Engineering
- DOE Contract Number:
- AC22-76ET10495
- OSTI ID:
- 5668409
- Report Number(s):
- DOE/ET/10495-T4; FE-2034-25; ON: DE82007910
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CATALYSTS
COMPARATIVE EVALUATIONS
PERFORMANCE TESTING
COAL LIQUIDS
HYDROGENATION
COAL LIQUEFACTION
DENITRIFICATION
EXPERIMENTAL DATA
REGENERATION
SRC-II PROCESS
CHEMICAL REACTIONS
DATA
FLUIDS
INFORMATION
LIQUEFACTION
LIQUIDS
NUMERICAL DATA
TESTING
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction