Effect of Particle Size on Low-Temperature Pyrolysis of Woody Biomass
Effect of Particle Size on Low-Temperature Pyrolysis of Woody Biomass
复制标题
粒径对木本生物质低温热解的影响
DOI：
10.1021/ef501869e
复制
发表时间：
2014
期刊：
影响因子：
5.3
通讯作者：
E. Fisher
中科院分区：
文献类型：
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作者：
H. Bennadji;Krystle Smith;M. Serapiglia;E. Fisher
当对生物质进行热化学处理时，生物质颗粒的尺寸会影响处理时间要求和产量。本研究通过实验和建模方法研究了厘米级粒径对三种木质生物质热解的影响；杨木、松木边材、松木心材。大（D = 3.81 cm）和小（D = 2.54 cm）木球在热稠条件下在具有湍流气流的反应器中在三个最终热解温度下热解；同样的木质材料也在热重分析仪（TGA）中在动力学控制下进行热解。实验使用先前发布的一维热解模型进行模拟，其中包括生物质成分的固体到蒸汽反应的传输和动力学。粒径对脱挥发分时间有很大影响，也影响某些物种的产量。该模型成功地预测了定性特征和定量的近似大小......
When biomass is thermochemically processed, the size of the biomass particles affects processing time requirements and yields. This study investigates the effects of particle size at the centimeter scale on pyrolysis through both experimental and modeling approaches, with three types of woody biomass; poplar, pine sapwood, and pine heartwood. Large (D = 3.81 cm) and small (D = 2.54 cm) wood spheres were pyrolyzed under thermally thick conditions at three final pyrolysis temperatures in a reactor with turbulent gas flow; the same wood materials were also pyrolyzed in a thermogravimetric analyzer (TGA), under kinetic control. The experiments were simulated using a previously published 1-dimensional pyrolysis model, which includes transport and kinetics of solid to vapor reactions for biomass components. Particle size had a strong effect on devolatilization timing and also affected the yields of some species. The model was successful at predicting the qualitative features and approximate magnitudes of quanti...