Catalysts and process developments for two-stage liquefaction. Quarterly technical progress report, Fourth quarter FY 1990 (July 1--September 30, 1990)
Technical Report
·
OSTI ID:10188211
Research underway in this project centers upon developing and evaluating catalysts and process improvements for coal liquefaction in the two-stage close-coupled catalytic process. The feedstock beneficiation and liquefaction studies are continuing. The liquefaction of Martin Lake, Texas, lignite has been completed, and results are being analyzed and will be documented in the next quarterly report. In the second stage catalyst program, an attempt is being made to diversify the catalyst development effort by testing previously unevaluated materials. As reported in the previous quarterly, the performances of molybdenum nitride and molybdenum carbide were compared against AMOCAT{trademark}-1B, Shell 324, and thermal treating for hydroprocessing of a coal-derived gas oil and resid. Based on the promising initial results, additional high-surface-area nitrides and carbides were prepared at Clarkson University and compared on a constant volume basis against conventional hydrotreating catalysts. The results showed that on a volume basis, the unsupported high-surface-area molybdenum nitride and tungsten carbide had saturation and denitrogenation activities that approaches those of a commercial NiMo-catalyst (Shell 324). Since the catalyst pore volume and pores are still relatively small on the nitrides and carbides, it appears that their catalytic sites are intrinsically more active than those of a conventional NiMo/Al{sub 2}O{sub 3} catalyst. Lower activities were seen with the supported molybdenum nitrides and carbides, probably due to strong interaction of the molybdenum with the alumina support, thus preventing the reduction of molybdenum.
- Research Organization:
- Amoco Oil Co., Naperville, IL (United States). Research and Development Dept.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-88PC88819
- OSTI ID:
- 10188211
- Report Number(s):
- DOE/PC/88819--T3; ON: DE95001210; BR: AA2515150
- Country of Publication:
- United States
- Language:
- English
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