A Euler–Lagrangian simulation was employed for a comprehensive parameter study of wood gasification in a fluidized charcoal bed. The parameters that were varied include the initial bed temperature, fuel mass flow rate, inert tar fraction, and kinetic energy losses caused by particle–particle and particle–wall collisions. The results of each parameter variation are compared with a base scenario, previously described in detail in Part I of this study (Gerber & Oevermann, 2014). The results are interpreted by comparing the reactor outlet temperature, averaged particle temperature, overall wood mass, overall charcoal mass, concentrations of several gaseous species, and axial barycenter data for particles obtained with different sets of parameters. The inert tar fraction and fuel mass flow rate are the most sensitive parameter, while the particle–particle and particle–wall contact parameters have only a small impact on the results. Increasing the reactive tar components by 19% almost doubled the amount of reactive tars at the reactor outlet, while decreasing the restitution coefficients of the particle collisions by 0.2 results in higher overall gas production but almost no change in bed height. Herein, our numerical results are discussed in detail while assessing the model restrictions.

欧拉-拉格朗日模拟用于流化木炭床中木材气化的综合参数研究。变化的参数包括初始床层温度，燃料质量流量，惰性焦油馏分以及由颗粒间和颗粒间碰撞引起的动能损失。将每个参数变化的结果与基础场景进行比较，之前在本研究的第一部分中对此进行了详细介绍（Gerber＆Oevermann，2014）。通过比较反应器出口温度，平均颗粒温度，总木材质量，总木炭质量，几种气态物质的浓度以及使用不同参数集获得的颗粒的轴向重心数据来解释结果。惰性焦油分数和燃料质量流量是最敏感的参数，而粒子-粒子和粒子-壁接触参数对结果的影响很小。将反应性焦油成分增加19％几乎使反应器出口处的反应性焦油量增加一倍，而将粒子碰撞的恢复系数降低0.2会导致总气体产量增加，但床层高度几乎不变。在这里，我们的数值结果将在评估模型约束的同时进行详细讨论。