Biomass Energy Engineering Research Center, Key Laboratory of Urban Agriculture (South) Ministry of Agriculture, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
European Bioenergy Research Institute, Aston University, Aston Triangle, Birmingham B4 7ET, United Kingdom.
Bioresour Technol. 2018 Oct;265:139-145. doi: 10.1016/j.biortech.2018.05.092. Epub 2018 Jun 4.
The kinetic compensation effect in the logistic distributed activation energy model (DAEM) for lignocellulosic biomass pyrolysis was investigated. The sum of square error (SSE) surface tool was used to analyze two theoretically simulated logistic DAEM processes for cellulose and xylan pyrolysis. The logistic DAEM coupled with the pattern search method for parameter estimation was used to analyze the experimental data of cellulose pyrolysis. The results showed that many parameter sets of the logistic DAEM could fit the data at different heating rates very well for both simulated and experimental processes, and a perfect linear relationship between the logarithm of the frequency factor and the mean value of the activation energy distribution was found. The parameters of the logistic DAEM can be estimated by coupling the optimization method and isoconversional kinetic methods. The results would be helpful for chemical kinetic analysis using DAEM.
木质纤维素生物质热解的逻辑分布活化能模型(DAEM)中的动力学补偿效应进行了研究。采用均方误差(SSE)曲面工具分析了纤维素和木聚糖热解的两个理论模拟逻辑 DAEM 过程。使用逻辑 DAEM 结合模式搜索方法进行参数估计来分析纤维素热解的实验数据。结果表明,对于模拟和实验过程,逻辑 DAEM 的许多参数集可以在不同的升温速率下很好地拟合数据,并且发现频率因子的对数与活化能分布的平均值之间存在完美的线性关系。可以通过将优化方法和等转化率动力学方法耦合来估计逻辑 DAEM 的参数。该结果将有助于使用 DAEM 进行化学动力学分析。