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Kinetic Analysis of the Main Temperature Stage of Fast Pyrolysis

机译:快速热解的主要温度阶段动力学分析

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Kinetics of the thermal decomposition of eucalyptus chips was evaluated using a high-rate thermogravimetric analyzer (BL-TGA) designed by our research group. The experiments were carried out under non-isothermal condition in order to determine the fast pyrolysis behavior of the main temperature stage (350-540°C) at heating rates of 60, 120, 180, and 360°C min~(-1). The Coats-Redfern integral method and four different reaction mechanism models were adopted to calculate the kinetic parameters including apparent activation energy and pre-exponential factor, and the Flynn-Wall-Ozawa method was employed to testify apparent activation energy. The results showed that estimation value was consistent with the values obtained by linear fitting equations, and the best-fit model for fast pyrolysis was found.
机译:使用我们的研究组设计的高速热重分析仪(BL-TGA)评估了桉树芯片热分解的动力学。在非等温条件下进行实验,以确定主温度级(350-540℃)的快速热解作用,在加热速率为60,120,180和360℃min〜(-1) 。采用涂层 - 铁路整体方法和四种不同的反应机制模型来计算包括表观激活能量和预指数因子的动力学参数,并且使用Flynn-Wall-ozawa方法来证明表观活化能量。结果表明,估计值与线性拟合方程所获得的值一致,并且发现了快速热解的最佳拟合模型。

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