Short residence time hydropyrolysis of coal. Technical progress report, 1 January-31 March 1980 [electronic resource].
Published
Princeton, N.J. : Princeton University, 1980. Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
This report sets forth the current status of our efforts to model the hydropyrolysis process on the scale of a single coal particle. Several oversimplifications of the original model have been identified and the more general analysis begun. As emphasized in the literature, the effect of time-temperature history, or nonisothermal reaction conditions, appears to be important and is being incorporated into the model. An increased internal pressure due to the restricted escape of volatiles can increase the rate of deposition and also cause the swelling of plastic coal particles. Our efforts reported here should lead to realistic descriptions of these processes.