Characterization of coal pyrolysis in indirectly heated fixed bed based on field effects
Fuel(2017)
Abstract
•The increased reactor radius raised the coal bed thickness, which decreased the tar yield but raised the light tar faction.•The char microcosmic study showed the gas flow from pyrolysis sites to central low-temperature coal bed.•The color variations of quartz verified the change of flow fields, bridging a gap between microcosmic and macroscopic study.
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Key words
Coal pyrolysis,Coal bed thickness,Reactor with internals,Reaction mechanism,Secondary reaction
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