热解芥菜油渣：动力学和热力学研究。
Pyrolysis of mustard oil residue: A kinetic and thermodynamic study.
机构信息
Department of Chemical Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, Uttar Pradesh, India.
Department of Chemical Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, Uttar Pradesh, India.
出版信息
Bioresour Technol. 2021 Nov;339:125631. doi: 10.1016/j.biortech.2021.125631. Epub 2021 Jul 22.
Critical analysis of thermogravimetric data, characterization of the biomass, and kinetic and thermodynamic analyses are crucial in the design of efficient biomass pyrolysis systems. In this study, characterization, kinetic and thermodynamic analysis was performed for pyrolysis of mustard oil residue (MOR). Thermogravimetric analysis (TGA) with differential thermal analysis (DTA) was applied to study thermal decomposition behaviour of MOR at 10, 20, and 30 °C/min. FTIR and XRD analyses were used to characterize MOR. Average activation energy estimated from employed isoconversional methods was ≈155 kJ/mol. Variation in activation energy was found to be statistically insignificant as suggested by p-value of 0.992 by one-way ANOVA method. The pyrolytic temperature for MOR ranged from 234 to 417 °C. Reaction mechanism predicted as R3 (third order) and D3 (three dimensional). Thermodynamic parameters (ΔH, ΔG and ΔS) showed that endothermicity increased from 0.2 to 0.8 conversion and product had highest energy at 0.8 conversion.
对热重数据进行批判性分析、对生物质进行特性分析以及进行动力学和热力学分析，对于设计高效的生物质热解系统至关重要。在这项研究中，对芥末油渣（MOR）的热解进行了特性分析、动力学和热力学分析。采用热重分析（TGA）和差热分析（DTA）研究了 MOR 在 10、20 和 30°C/min 下的热分解行为。使用傅里叶变换红外光谱（FTIR）和 X 射线衍射（XRD）分析对 MOR 进行了特性分析。从所采用的等转化率方法估算出的平均活化能约为 155 kJ/mol。通过单因素方差分析（One-way ANOVA）方法，p 值为 0.992，表明活化能的变化无统计学意义。MOR 的热解温度范围为 234 至 417°C。预测的反应机制为 R3（三级）和 D3（三维）。热力学参数（ΔH、ΔG 和 ΔS）表明，随着转化率从 0.2 增加到 0.8，吸热性增加，而在转化率为 0.8 时，产物具有最高的能量。
Zotero 插件