脱挥发作为生物医疗废物能量增值的替代方法:动力学研究

Andrea Elizabeth Cayancela-Muñoz, Gabriela Benalcázar-Peñafiel, María Alvarado-Aguiar, Gilda Gordillo-Vinueza, Carolina Montero-Calderón
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引用次数: 2

摘要

热重分析已经确定了生物卫生废物作为替代燃料的可能来源的脱挥发分动力学。在本研究中,材料的热降解是在热重分析仪中以不同的加热速率进行的:5、15、30°C/min,具有动态斜坡和等温周期。计算了不同时间和温度下的质量损失数据、热分解反应的转化率,该值用于三个数学模型,这些模型将预测动力学参数,如活化能、指数前因子和反应顺序。通过最小化计算的热降解率与实验值之间的误差,提出了一个更好的拟合模型。得出的结论是,受污染衣服和手套的最佳动力学模型考虑了Arrhenius方程和二级反应,并包括每种材料450和367°C的参考温度。被污染的长袍和手套的活化能分别为553.62和154.06 kJ/mol。已经确定,通过在这些材料的热降解中实现0.98的转化率,它们可以作为替代燃料转化为感兴趣的材料。
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Devolatilization as an alternative for energy valorization of bio-medical waste: kinetic study
Thermogravimetric analysis has established kinetics for the devolatilization of bio sanitary waste as possible sources for alternative fuels. In this study, the thermal degradation of materials was carried out at different heating rates: 5, 15, 30 °C/min with dynamic ramps and isothermal periods in the thermogravimetric analyzer. The data from the mass loss at different times and temperatures, the conversion of the thermal decomposition reaction was calculated, this value was used in three mathematical models that will predict the kinetic parameters such as activation energy, pre-exponential factor, and order of the reaction. A better fit model is proposed by minimizing the error between the calculated thermal degradation rate and the experimental one. It is concluded that the best kinetic model for contaminated clothes and gloves considered the Arrhenius equation and reaction order two and includes reference temperatures of 450 and 367 °C for each material. The activation energy values for contaminated gowns and gloves are 553.62 and 154.06 kJ/mol, respectively. It is established that by achieving a conversion of 0.98 in the thermal degradation of these materials, they can be converted into the material of interest as alternative fuels.
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3
审稿时长
24 weeks
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