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DEVOLATILIZATION KINETICS AND ELEMENTAL RELEASE IN THE PYROLYSIS OF PULVERIZED COAL
Citation:
Agreda, V., R. Felder, AND J. Ferrell. DEVOLATILIZATION KINETICS AND ELEMENTAL RELEASE IN THE PYROLYSIS OF PULVERIZED COAL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/241.
Description:
The report gives results of a study of the evolution of volatile matter and trace elements from pulverized coal during pyrolysis in an inert atmosphere, using batch and laminar flow furnace reactors. Five coals were used, ranging in rank from lignite to anthracite. Data on transient and equilibrium elemental release and volatile yields were obtained in a batch furnace reactor, under slow heating rates, over a wide range of temperatures and residence times. Weight losses of all coals increased significantly with temperature. Devolatilization kinetics data were obtained in a laminar flow reactor for two lignites and a subbituminous coal, with rapid heating, low to intermediate temperatures, rapid quenching, and 150-1500 msec residence.