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Waste Management & Research
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Temperature Profiles in Thermally Decomposing Pelletized Refuse-Derived Fuel

Brian K. Gullett

Department of Civil and Environmental Engineering, Duke University, Durham, North Carolina, U.S.A.

P. Aarne Vesilind

Department of Civil and Environmental Engineering, Duke University, Durham, North Carolina, U.S.A.

The pyrolytic and combustive reactions of thermally decomposing pelletized refuse-derived fuel in air and nitrogren atmospheres is studied through the experimental determination of the temperature profile within cellulose cylinders. The internal temperature history of cellulose cylinders is monitored by use of thermocouples inserted into holes drilled in the cylinder side at different depths and heights. The cylinders are tested by immersion into a preheated furnace at a range of temperatures. The reaction energetics of the decomposition during pyrolysis and combustion processes are recorded by the thermocouple monitors. An endothermic reaction initiated at c. 310°C is observed. This reaction is followed by a consecutive, exothermic reaction at c. 350°C in both air and nitrogen atmospheres that raises the cylinder temperature above that of the surrounding chamber.

Key Words: Refuse-derived fuel • thermal decomposition • cellulose • pyrolysis • combustion.

Waste Management & Research, Vol. 3, No. 1, 161-171 (1985)
DOI: 10.1177/0734242X8500300117
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