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Physicochemical analysis and kinetic study of orange bagasse at higher heating rates

机译：较高加热率橙甘蔗渣的物理化学分析及动力学研究

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The present work investigates the thermal degradation behaviour of orange bagasse that was pyrolysed in a thermogravimetric analyser at four heating rates 25, 50, 75 and 100 degrees C min(-1) respectively under a constant N-2 flow rate of 0.1 L min(-1). Along with thermal degradation, the physicochemical properties of orange bagasse were determined by proximate, ultimate, compositional analysis and high heating value. The analysis results indicated that the orange bagasse has low moisture and high volatile matter content which gave a better HHV of 17.26 MJ kg(-1). Other analysis like FT-IR, EDX, XRD, SEM and BET also helped in investigating the physicochemical properties of orange bagasse. Using three different kinetic models namely Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW) and Coats-Redfern the kinetic parameters like apparent activation energy (Ea) and reaction order (n), correlation values (R-2) and pre-exponential factor (A) were determined by optimising the thermogravimetric data of orange bagasse. The two kinetic models KAS and OFW methods helped in calculating the mean apparent activation energy of the orange bagasse which was 112.90 and 123.24 kJ mol(-1) respectively. The experimental data were in good agreement with the orange bagasse kinetics simulated data. From the results of the above analysis and kinetic study, it can be said that the orange bagasse has the potential to become a pyrolysis feedstock.
机译：本作者研究了在恒定的N-2流量为0.1L min的恒定N-2流速下在热度分析仪中在热度分析仪中被热解的热降解橙甘蔗渣的热降解行为。 -1）。随着热降解，通过近极，最终，组成分析和高加热值来确定橙色甘蔗渣的物理化学性质。分析结果表明，橙甘蔗渣具有低的水分和高挥发性物质含量，其具有17.26mJ kg（-1）的更好的HHV。其他分析如FT-IR，EDX，XRD，SEM和赌注也有助于研究橙色甘蔗渣的物理化学特性。使用三种不同的动态模型即Kissinger-Akahira-Sunose（KAS），ozawa-Flynn-Wall（OFW）和涂层 - Reffern等动力学参数，如表观激活能量（EA）和反应顺序（n），相关值（R-2 ）通过优化橙色甘蔗渣的热重标数据来确定预指导因子（a）。两个动力学模型KAS和OFW方法有助于计算橙色甘蔗渣的平均明显的活化能量，分别为112.90和123.24 kJ摩尔（-1）。实验数据与Orange Bagasse动力学模拟数据吻合良好。从上述分析和动力学研究的结果中，可以说橙色甘蔗渣具有潜力成为热解原料。

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