Two-stage coal-liquefaction process. Quarterly report, October 1-December 31, 1979
Catalyst No. CT-4247 was selected and sent to Amoco for evaluation in the continuous unit. The autoclave unit was modified as follows: (1) In order to obtain a consistent amount of autoclave product from different runs, the liquid sampling tube with the 230-micron filter was modified by ending the sampling tube vertically and turning the filter to a vertical position. This modification provides sufficient rigidity to the end of the tube and prevents it from changing position. (2) A hydrogen reservoir was added to the unit. It was equipped with a high pressure regulator to admit the hydrogen needed to maintain a constant pressure of 2500 psig in the autoclave. Runs carried out under a constant pressure of 2500 psig confirm that (1) macropore catalysts with median pore diameter of 2350 and 4000 Angstrom were capable of higher coal conversion than HDS-1442A, and (2) large macropore catalysts with median pore diameters of 18,500 and 32,000 Angstrom had same coal conversion as HDS-1442A but at much lower hydrogen consumption than HDS-1442A. However, HDS-1442A and Amocat 1A (II-108/16) with bimodal pore size distribution and high surface area yielded 10% (basis coal feed) less toluene-insoluble residuum and correspondingly more toluene-soluble residuum than the macropore catalyst with low surface area.
- Research Organization:
- Catalysis Research Corp., Palisades Park, NJ (USA)
- DOE Contract Number:
- AC22-78ET10735
- OSTI ID:
- 6177796
- Report Number(s):
- DOE/ET/10735-T1
- Country of Publication:
- United States
- Language:
- English
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Two-stage coal liquefaction process. Quarterly report, July 1-September 30, 1979
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