Partial devolatilization of coal in ywo entrained-bed carbonizers.
Grand Forks, ND: U.S. Department of the Interior, Bureau of Mines, RI 7843, 1974 Jan; :1-20
Data from 68 entrained-bed carbonization tests were treated statistically by the Bureau of Mines, and several useful relationships were developed among the major variables. Nine coals, ranging in rank from lignite a to high-volatile a bituminous, were carbonized in two entrained-bed carbonization pilot plants. The carbonizing reactors employed were vertically mounted cylinders, internally heated, refractory-lined, and 10 inches id. The range of carbonization temperatures was from 825 deg to 1,600 deg f. Using a regression-analysis computer program, empirical equations were developed by which carbonization temperature, air-to-coal ratio, devolatilization of coal, char yield, and volatile matter content of product char may be predicted.
IH; Report of Investigations
NTIS Accession No.
Grand Forks, ND: U.S. Department of the Interior, Bureau of Mines, RI 7843