Pyrolysis Kinetics of Rice Husk in Different Oxygen Concentrations
Publication: Journal of Environmental Engineering
Volume 134, Issue 4
Abstract
The effects of oxygen on the pyrolysis of rice husk were investigated with a thermal gravimetric analysis (TGA) reaction system. Pyrolysis experiments of rice husk were carried out in , 10% , and air at the heating rates of 2, 5, and . The TGA curves indicated two principal reactions, distinguished by significant and distinct mass changes over the experimental range. Oxygen enhanced the pyrolysis reactions of intermediates, which was produced from the first stage reaction of rice husk. A simple kinetic model was proposed for the pyrolysis of rice husk in different oxygen concentrations. The corresponding activation energies, preexponential factors, and reaction orders were determined. The experimental results were satisfactorily fitted by the proposed kinetic model.
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Acknowledgments
The writers express their sincere thanks to the government of Tai-Chung county of Taiwan for the financial support.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 134 • Issue 4 • April 2008
Pages: 316 - 325
Copyright
© 2008 ASCE.
History
Received: Jul 20, 2006
Accepted: Apr 26, 2007
Published online: Apr 1, 2008
Published in print: Apr 2008
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