In this work, the gas–liquid mass transfer performance of rotating packed bed (RPB) with AlO sphere packing, in term of volumetric liquid-side mass transfer coefficient (), was investigated by CO-NaOH chemical absorption system. The adsorption performance of AlO spheres was also evaluated by an ink adsorption method. Results showed that the values of RPB with AlO sphere packing were higher than those of RPB with nonporous sphere packing, and over one magnitude order higher than those of trickle bed reactor (TBR) with AlO sphere packing. The ink adsorption, film diffusion and pore diffusion rates of AlO spheres have been greatly improved under the high gravity field, and it has been found that the surface tension was the main driving force of ink adsorption. Moreover, the adsorption kinetics was investigated and the experimental data fitted well with the pseudo-first-order adsorption kinetics model.

中文翻译：

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旋转填充床中Al2O3球体填料的传质强化机理

本工作采用 CO-NaOH 化学吸收系统，以体积液侧传质系数 () 来研究 Al2O3 球体填料旋转填充床 (RPB) 的气液传质性能。还通过墨水吸附法评价了Al2O球的吸附性能。结果表明，Al2O3球体填料的RPB值高于无孔球体填料的RPB，比Al2O3球体填料的滴流床反应器（TBR）高一个数量级以上。高重力场下Al2O3球体的油墨吸附、薄膜扩散和孔扩散速率均得到大幅提高，并且发现表面张力是油墨吸附的主要驱动力。此外，还研究了吸附动力学，实验数据与准一级吸附动力学模型吻合良好。