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Received September 16, 2015
Accepted March 28, 2016
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Chemical kinetics of bean straw biofuel pyrolysis using maximum volatile release method
School of Electronic Power Engineering, China University of Mining and Technology Xuzhou, Jiangsu 221008, China 1Department of Mechanical Engineering, Texas A&M University, College Station, TX 77840, U.S.A., USA
Korean Journal of Chemical Engineering, August 2016, 33(8), 2330-2336(7), 10.1007/s11814-016-0088-4
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Abstract
Maximum volatile release (MVR) methods, including single point (MVR-S) and multiple (MVR-M)_x000D_
points, are proposed to extract the kinetics used to predict the fuel bean straw pyrolysis process. The simulation results were compared to those of the distributed activation energy model (DAEM). For the TGA (thermogravimetric analysis) experiments, fuels were heated from ambient temperature to 1,173 K at the heating rates of 10, 20, 40, 60, 80 K min-1, and the corresponding maximum volatile release points were obtained. For the MVR-S method, both the activation energy (E) and pre-exponential factor (B) increased with increasing heating rates. For the pyrolysis weight loss process, the DAEM showed best agreement with the experimental data, followed by the MVR-M, and then the MVR-S method. However, for weight loss rate prediction, MVR-S method had the best match with the experimental data, whereas the DAEM and MVR-M method generated more errors.
