GIEMA Research Group, School of Mechanical Engineering, Universidad Industrial de Santander, Carrera 27 Calle 9, Bucaramanga, Santander, Colombia.
GIEMA Research Group, School of Mechanical Engineering, Universidad Industrial de Santander, Carrera 27 Calle 9, Bucaramanga, Santander, Colombia.
Bioresour Technol. 2019 Nov;292:121923. doi: 10.1016/j.biortech.2019.121923. Epub 2019 Jul 30.
In this work, were studied the thermal and kinetic characteristics of the palm kernel shell (PKS) and empty fruit bunch (EFB) from the African oil palm. Experiments in the inert atmosphere were carried out in a thermogravimetric analyzer. In the kinetic analysis were applied the one-step reaction through iso-conversion methods, mechanism of independent parallel reactions (MIPR), and mechanism of consecutive reactions (MCR). The one-step reaction mechanism overestimated the thermal decomposition of all samples; however, the best was the EFB. The MIPR showed to be representative of the thermal decomposition of all samples, and the proposed correlations between the pre-exponential factor and the heating rate improved the accuracy of the model. The MCR analysis showed that using the same kinetic parameters applied in the MIPR does not affect reliability. Finally, as a conclusion, blending PKS with EFB increase 5% heating value and decrease 50% ash content.
在这项工作中，研究了非洲油棕的果核壳（PKS）和空果串（EFB）的热特性和动力学特性。在热重分析仪中进行了惰性气氛下的实验。在动力学分析中，通过等转化率方法应用了一步反应、独立平行反应（MIPR）机制和连续反应（MCR）机制。一步反应机制高估了所有样品的热分解；然而，EFB 的情况最好。MIPR 显示出代表所有样品的热分解，并且在预指数因子和加热速率之间提出的相关性提高了模型的准确性。MCR 分析表明，在 MIPR 中使用相同的动力学参数不会影响可靠性。最后，作为结论，将 PKS 与 EFB 混合可提高 5%的热值，降低 50%的灰分含量。
