Abstract
The article presents results of experimental investigations of the two-stage pyrolytic processing of pulp and paper industry wood waste into gas, which combines pyrolysis of raw material and subsequent high-temperature heterogeneous cracking of volatile pyrolysis products in a fixed bed of the coke residue of raw material. Dependence of specific gas yield, chemical composition, heating value and specific tar content on the cracking temperature are obtained. In different conversion modes the following gas characteristics were obtained: specific yield up to 1.5 m3/kg, volumetric fraction of combustible components more than 92%, lower heating value 10.8–12.5 MJ/m3, specific tar content 10–100 mg/m3. The data obtained form the basis for calculating the energy and mass balance of pilot unit of the two-stage pyrolytic conversion of pulp and paper industry wood waste into gas.
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