Co-Pyrolysis Kinetics of Expandable Polystyrene and Biomass

Based on the thermogravimetric method,co-pyrolysis of expandable polystyrene(EPS) and three kinds of biomass(bagasse,peanut shell,corncob) were investigated.The interaction between EPS and biomass co-pyrolysis was studied and the kinetics models were established according to the thermogravimetric curves.The thermogravimetric analysis results showed that synergistic effect of the copyrolysis of EPS respectively with bagasse and corncob is obvious,but there is no obvious synergy for EPS with peanut shell.The kinetic analysis indicates that the pyrolytic processes can be described as first order reaction models,a quite good fitting of experimental data was obtained for all samples studied.When the EPS and the biomass pyrolyzed separately,the former can be described as one first order reaction model,and the latter can be described as three consecutive models,then the co-pyrolysis of EPS and biomass need to be described as four consecutive models.