Catalysts and process developments for two-stage liquefaction, Report No. 24. Quarterly technical progress report - Second quarter FY 1990, January 1, 1990--March 31, 1990
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 project is being carried out under contract to the United States Department of Energy. The preparation of samples of beneficiated Martin Lake lignite and Burning Star mine Illinois No. 6 coal and the liquefaction of these samples in the AU-51 flow unit is complete. Size separation in combination with gravity beneficiation was effective in beneficiating Illinois No. 6 coal, and size separation in combination with aqueous sulfur dioxide treatment followed by density separation was also productive for Martin Lake lignite. The liquefaction of these Illinois No. 6 samples resulted in significant differences in the yields of distillable product. The low density, float fraction was the preferred liquefaction feedstock due to its low ash content (6.5%) and high distillate yield. The high density, sink fraction should be rejected due to its high ash content (18.3%), even though this material functioned as a weak catalyst and produced light product. Sulfurous acid treatment and sink/float beneficiation of Martin Lake lignite was clearly beneficial. Ash levels in the lignite were reduced, conversion was slightly increased, and an all-distillate product was generated.
- 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:
- 10190927
- Report Number(s):
- DOE/PC/88819-T17; ON: DE95001966; TRN: 94:009743
- Resource Relation:
- Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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