Effects of solvent composition and concentration on early liquefaction reactions
Conference
·
OSTI ID:5858282
The early reaction chemistry of coal liquefaction includes the dissolution of coal by reaction with solvent to produce preasphaltenes. The subsequent decomposition to asphaltenes and finally to oils can be described with a classic series reaction mechanism. Neither dissolution nor upgrading rates are independent of solvent. In terms of solvent, dissolution appears to be stoichiometric with preasphaltene formation, and secondary reaction rates are dependent upon hydrogen availability. Some of the ramifications of these early reactions are: multistage processing; effective utilization of catalysts; tailored product slate; and hydrogen utilization.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5858282
- Report Number(s):
- SAND-81-2000C; CONF-810999-1; ON: DE82004136
- Country of Publication:
- United States
- Language:
- English
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