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Received March 9, 2016
Accepted May 25, 2016
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Thermogravimetric characteristics of α-cellulose and decomposition kinetics in a micro-tubing reactor

Department of Chemical Engineering, Kangwon National University, 346 Joongang-ro, Samcheok, Gangwon-do 25913, Korea 1Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Doegyeong-daero, Giheung-gu, Yongin, Gyeonggi-do 17104, Korea 2Department of Chemical Engineering, Kyung Hee University, 1732 Doegyeong-daero, Giheung-gu, Yongin, Gyeonggi-do 17104, Korea
jhko@khu.ac.kr
Korean Journal of Chemical Engineering, November 2016, 33(11), 3128-3133(6), 10.1007/s11814-016-0143-1
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Abstract

The pyrolysis characteristics and kinetics of α-cellulose were investigated using thermogravimetric analyzer (TGA) and micro tubing reactor, respectively. Most of the α-cellulose decomposed between 250 and 400 ℃ at heating rate of 5-20 ℃/min. The apparent activation energy was observed in the range of 263.02 kJ mol-1 to 306.21 kJ mol-1 at the conversion of 10-80%. The kinetic parameters were determined by nonlinear least-squares regression of the experimental data, assuming first-order kinetics. It was found from the kinetic rate constants that the predominant reaction pathway was A(α-cellulose) to B(bio-oil) rather than A(α-cellulose) to C(gas; C1-C4) and/or to B(bio-oil) to C(gas; C1-C4) at temperatures of 340-360 ℃.

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