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Free-radical kinetics of coal liquefaction
A rate expression with first- and second-order terms in the concentration of extractable compounds in solid coal particles is derived from a fundamental free-radical mechanism. The expression was suggested empirically by prior experiments for coal liquefaction in the presence of a hydrogen-donor solvent. Radical reactions are considered to occur in both coal and in solvent. The long-chain approximation justifies the neglect of initiation, hydrogen abstraction, and termination rates as quantitatively insignificant relative to propagation reaction rates.
Date:
July 16, 1994
Creator:
Wang, M.; Smith, J. M. & McCoy, B. J.
System:
The UNT Digital Library