Abstract Liquid-solid mass transfer model is significant but deficient for the design of a rotating trickle-bed reactor (RTBR), which has great potential for process intensification of heterogeneous catalytic reactions. In this work, a mathematical model considering the wetting efficiency was first established to describe the liquid-solid mass transfer process in the RTBR. External static liquid holdup was referred to give a reasonable initial value for calculation. The profile of concentration boundary layer was obtained by mass balance analysis of an Eulerian element on a single sphere. The above model was then extended to predict the liquid-solid mass transfer coefficient (kLS) in the RTBR. A copper dissolution method was employed to measure the kLS, considering the effects of particle diameter, rotational speed, and liquid superficial mass velocity. The comprehensive comparison between predicted and experimental values of kLS was conducted and deviations were within ±25%.

中文翻译：

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旋转滴流床反应器中的液固传质：数学建模和实验验证

摘要 液固传质模型对于旋转滴流床反应器（RTBR）的设计具有重要意义但存在不足，该反应器在多相催化反应的过程强化方面具有巨大潜力。在这项工作中，首先建立了一个考虑润湿效率的数学模型来描述 RTBR 中的液固传质过程。参考外部静态液体滞留量以给出用于计算的合理初始值。通过对单个球体上的欧拉元素进行质量平衡分析，获得了浓度边界层的轮廓。然后将上述模型扩展到预测 RTBR 中的液固传质系数 (kLS)。考虑到粒径、转速、和液体表面质量速度。对kLS的预测值和实验值进行综合比较，偏差在±25%以内。