Mass-transfer in rotating packed beds—I. Development of gas—liquid and liquid—solid mass-transfer correlations
Mass-transfer in rotating packed beds—I. Development of gas—liquid and liquid—solid mass-transfer correlations
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DOI：
10.1016/0009-2509(89)85159-0
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发表时间：
1989
影响因子：
4.7
通讯作者：
S. Munjal;Milorad P. Dudukovć;P. Ramachandran
中科院分区：
文献类型：
--
作者：
S. Munjal;Milorad P. Dudukovć;P. Ramachandran
建立了旋转填料床气液和液固传质系数的关联式。它们基于旋转叶片和旋转盘上的层流液膜流，以及旋转床中表面的假定随机分布。分别采用穿透理论和完全对流扩散模型进行计算，并对计算结果进行了比较。通过这种比较，证明了在较低转速下使用贯入理论的合理性。与重力膜流和传统的填充床的相似之处和不同之处进行了概述。预测了旋转床的上级性能。
Correlations for predicting gas—liquid and liquid—solid mass-transfer coefficients in rotating packed beds are developed. They are based on laminar liquid film flow on a rotating blade and rotating disk, and the assumed random distribution of surfaces in the rotating bed. Both penetration theory and the complete convectio—diffusion model are used and the results are compared. The use of penetration theory at lower rotational speed is justified by this comparison. Similarities and differences with gravity film flow and conventional packed beds are outlined. The superior performance of rotating beds is predicted.