In this study, we developed an improved comprehensive pyrolysis scheme by modifying the bio-oil species and gas species fractions, increasing the carbon fraction in the char, and combining and changing the metaplastic decompositions for energy analysis. The two-fluid model (TFM) framework was used to simulate pyrolysis in a two-dimensional tubular reactor, and 10 g of 1500-μm-sized pinewood particles was used as biomass feedstock. Pyrolysis was performed at 400 °C−600 °C with an average heating rate of 115 °C/min. The improved scheme was evaluated against recent comprehensive pyrolysis schemes with respect to decomposition characteristics. The pyrolysis product yields and compositions predicted by the improved model accorded with experimental results. Moreover, the energy contents and distributions of pyrolysis products were successfully estimated, and the relative errors of bio-oil, gas, and char energies were 0.61%, 9.54%, and −3.76%, respectively. The energy distributions were more dominant influenced by the pyrolysis product yields than by the energy density.

在这项研究中，我们通过修改生物油物种和气体物种分数、增加炭中的碳分数以及结合和改变化生分解进行能量分析，开发了一种改进的综合热解方案。使用双流体模型 (TFM) 框架模拟二维管式反应器中的热解，并使用 10 g 1500-μm 大小的松木颗粒作为生物质原料。热解在 400 °C-600 °C 下进行，平均加热速率为 115 °C/min。改进的方案根据最近的综合热解方案在分解特性方面进行了评估。改进模型预测的热解产物产率和组成与实验结果一致。此外，成功地估计了热解产物的能量含量和分布，生物油、气、炭能量的相对误差分别为0.61%、9.54%和-3.76%。能量分布受热解产物产率的影响比受能量密度的影响更大。