Authors: H. Yuan and R. Liu 1
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  • 1 Shanghai Jiao Tong University Biomass Energy Engineering Research Centre, School of Agriculture & Biology 2678 Qixin Road Shanghai 201101 P.R. China
  • | 2 Planting Industry Service Centre of Yanqing County of Beijing City Yanqing, Beijing 102100 P.R. China
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Abstract  

Slow pyrolysis of walnut shell which is a cheap and abundantly available solid waste was carried out using thermogravimetric analysis. The effects of raw material heating rate on the pyrolysis properties and kinetic parameters were investigated. A two-step consecutive reaction model were used to simulate the pyrolysis process. The kinetic parameters were established by using the pattern search method. Comparison between experimental data and the model prediction indicated that the two-step consecutive reaction model can better describe the slow pyrolysis of walnut shell as the formation of an intermediate during the pyrolysis process was taken into account.