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ABSTRACT
The pyrolysis kinetics of invasive plant Spartina anglica biomass was investigated via a thermogravimetric (TG) analyzer from 50 to 800°C in an inert argon atmosphere at different heating rates of 5–30°C/min, and the kinetic parameters were deduced by Starink and master-plots methods. The results showed that three stages appeared in the thermal degradation process, and the mean value of activation energy was calculated to be 291.57 kJ/mol by the Starink method. It suggested that the most probable pyrolysis kinetic model was g(α) = [−ln(1-α)]4 deduced by the master-plots method, which meant a random nucleation and nuclei growth mechanism. These results provided fundamental useful information for describing the pyrolysis process, and the subsequent designing and running of a pyrolytic processing system using S. anglica as feedstock.
Acknowledgments
The authors are grateful to Dr. Xiujuan Tian from the Testing Center of College of Materials Science and Engineering for carefully carrying out the TGA of the samples.
Funding
This study was financially supported by National Natural Science Foundation of China (41302079), the Key Laboratory of Biofuels (CASKLB201507), Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, and Qingdao Government Scientific and Technological Program (13-1-4-232-jch), the China Postdoctoral Science Foundation (2013M540560, 2014T70659), Shandong Province Natural Science Foundation (ZR2013DQ005, ZR2014DM005), P. R. China.