Investigation of coal structure. Quarterly report, July 1, 1993--September 30, 1993
The objective of this project is to investigate the physical structure of coal: the extent to which coal molecules may be covalently cross-linked and/or physically associated. Coal structure should be well understood for its effective utilization, and better understanding of physical structure of coal is the first step for the development of coal utilization. Solvent swelling of coal and multistep sequences of extraction are the two main probes of investigation. No single solvent appears to disrupt all of the relatively strong secondary interactions in coal. Various relatively strong secondary interactions need to be solvated step by step by appropriate procedures. If physical association is considerable, it should be possible to extract coal by the multistep sequences. Secondly, physical association will be evaluated by coal swelling. For the investigation of the effects of low coal concentration and continuous mixing, a new method will be developed. The focus of the work will be on a specific bituminous coal low in sulfur and iron. As requested by DOE, Blind Canyon coal (DECS-16) obtained from the Penn State Coal Bank has been used in this project.
- Research Organization:
- Viking Systems International, Inc., Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-92PC91047
- OSTI ID:
- 10110413
- Report Number(s):
- DOE/PC/91047-T5; ON: DE94004534; BR: AA2560000
- Resource Relation:
- Other Information: PBD: Oct 1993
- Country of Publication:
- United States
- Language:
- English
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