Bench unit preheater study using Amocat 1A catalyst. [Bench-scale test of a thermal stage before the H-coal catalytic reactor]
Technical Report
·
OSTI ID:6787151
Under DOE Contract DE-AC05-77ET-10152, HRI is investigating the thermal dissolution of coal and its effects on the mechanism of catalytic coal liquefaction in an H-COAL system. The two-stage coal liquefaction system consists of a coal slurry preheater which is essentially a short residence time reactor and the liquefaction reactor which can be regarded as a catalytic-hydrogenation reactor. The bench unit operation tested Amocat 1A catalyst in the modified bench-unit operations with Illinois No. 6 coal, using a catalytic temperature 15/sup 0/F lower than had been used in earlier bench unit tests with this catalyst. The yield of residual oil from this operation was 10% greater than would have been expected on the basis of earlier bench-unit operations with this coal and catalyst, although such comparison is highly dependent on correlated extrapolation of the earlier work. The interrelation of product distribution and hydrogen requirement in this Amocat 1A operation was approximately the same as in the bench-unit (with preheater) operation with the standard catalyst, although feed space velocity would be 40% lower in the Amocat 1A operation because of the lower temperature used. This work indicates little pre-reaction of coal and residual oil in the preheater as operated in this run, with a nominal preheater slurry residence time of two minutes and a linear temperature profile to an outlet temperature of 750/sup 0/F. This work has shown that considerably higher severities are required in the thermal stage to effect a substantial impact upon the results of the catalytic stage.
- Research Organization:
- Hydrocarbon Research, Inc., Lawrenceville, NJ (USA)
- DOE Contract Number:
- AC05-77ET10152
- OSTI ID:
- 6787151
- Report Number(s):
- DOE/ET/10152-79; FE-10152-79; ON: DE83001736
- Country of Publication:
- United States
- Language:
- English
Similar Records
H-coal process improvement study: bench unit baseline run with preheater/reactor. [With and without a preheater]
H-Coal process improvement study: bench-unit baseline run with preheater/reactor
H-Coal process improvement study: bench-unit baseline run with preheater/reactor
Technical Report
·
Fri May 01 00:00:00 EDT 1981
·
OSTI ID:6415837
H-Coal process improvement study: bench-unit baseline run with preheater/reactor
Technical Report
·
Fri May 01 00:00:00 EDT 1981
·
OSTI ID:5936437
H-Coal process improvement study: bench-unit baseline run with preheater/reactor
Technical Report
·
Fri May 01 00:00:00 EDT 1981
·
OSTI ID:5967326