Measurements of CO2 gasification kinetics of coal chars at temperatures of 1273–1873 K were conducted by using a bench-scale fluidized bed reactor (FBR) made of alumina. The gasification rates of chars carbonized under both rapid heating and slow heating conditions were measured using a high-volatile bituminous coal and a medium-volatile bituminous coal. The significant difference in reactivity between rapid heating chars and slow heating chars, and the decrease of char reactivity at high temperature were discussed.

Issue Section:
Technical Papers
Keywords:
coal gasification, reaction kinetics, carbon compounds, fluidised beds, alumina, heating, Coal Char, Gasification, Fluidized Bed Reactor, Elevated Temperature, Heating Rate
Topics:
Coal, Fuel gasification, Heating, Temperature, Carbon, Fluidized beds
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Copyright © 2001
 by ASME
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