Effect of Extractives on the Thermal Decomposition of Wheat, Triticale, and Flax Crop Residues: A Kinetic Study

Kelly Ross; David Godfrey

Authors

Kelly Ross Paci c Agri-Food Research Center, Agriculture and Agri-Food Canada, 4200 Highway 97, Summerland, BC, V0H 1Z0, Canada Author
David Godfrey Paci c Agri-Food Research Center, Agriculture and Agri-Food Canada, 4200 Highway 97, Summerland, BC, V0H 1Z0, Canada Author

Keywords:

wheat straw, triticale straw, ax shives, extractives, thermal decomposition, kinetic analysis, Kissinger method, Coats-Redfern method, activation energy

Abstract

A kinetic study was performed using the Kissinger and Coats-Redfern methods to examine the e ect of extractives on thermal decomposition of three crop residues, wheat straw, triticale straw and ax shives. The extractives-free crop residues required higher temperatures for the onset of thermal decomposition than the corresponding native/unextracted samples. Activation energy (Ea) values varied according to kinetic analysis and the extractives-free samples generally showed signi cantly higher Ea values (65-214 kJ.mol-1) than the native/unextracted samples (58-205 kJ.mol-1). This information is necessary for dening the use of crop residues as agro- llers in composite materials and feedstock for bioenergy and biochemical via pyrolysis.