Determination of the effective interfacial area in rotating packed bed
Determination of the effective interfacial area in rotating packed bed
复制标题
DOI：
10.1016/j.cej.2011.01.100
复制
发表时间：
2011-04
影响因子：
15.1
通讯作者：
K. Yang;Guang‐wen Chu;Hai-kui Zou;Baochang Sun;L. Shao;Jianfeng Chen
中科院分区：
文献类型：
--
作者：
K. Yang;Guang‐wen Chu;Hai-kui Zou;Baochang Sun;L. Shao;Jianfeng Chen
在旋转填料床（RPB）中靠近转子安装取样管以收集立即流出填料的液体，从而测量RPB填料中的真实的有效气液界面面积（即不包括空腔区）。计算表明，空腔区对传质的贡献约占整个旋转床内总传质的13-25%。通过对不同半径填料有效气液界面面积的研究，证实了填料端部效应的存在。考察了填料径向厚度、转速、气液体积流量对有效界面面积的影响。
A sampling tube was installed closely to the rotor in a rotating packed bed (RPB) to collect the liquid immediately flowing out of the packing so as to measure the real effective gas–liquid interfacial area in the packing of the RPB (i.e. excluding the cavity zone). It was calculated that the contribution of the cavity zone to mass transfer accounted for about 13–25% of the overall mass transfer in the whole RPB. The existence of the end effect in the packing was confirmed by an investigation on the effective gas–liquid interfacial area in the packings with different radii. Effects of radial thickness of the packing, rotation speed, liquid and gas volumetric flow rate on the effective interfacial area were also studied.