Investigation of dynamic liquid distribution and hold-up in structured packings using ultrafast electron beam X-ray tomography
Investigation of dynamic liquid distribution and hold-up in structured packings using ultrafast electron beam X-ray tomography
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DOI：
10.1016/j.cep.2013.01.008
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发表时间：
2013-04-01
影响因子：
4.3
通讯作者：
Kenig, E. Y.
中科院分区：
文献类型：
--
作者：
Janzen, A.;Schubert, M.;Kenig, E. Y.
利用超快电子束X射线层析仪（2000幅/秒）对DN 80规整填料分离塔内的动态截面液体分布和持液量进行了研究。该模式允许在代表操作上限的溢流点之前和溢流点处对逆流流动进行可视化和表征。采用两种不同比表面积的相同类型的填料（Montz B1-MN），考察了填料几何形状对液体空间分布的影响。研究的系统是在不同的气体和液体负载的水/空气。通过与传统引流测量结果的比较，验证了断层成像和相应的后处理例程的结果。(C)2013爱思唯尔有限公司版权所有。
Dynamic cross-sectional liquid distribution and hold-up in a DN80 separation column filled with structured packings was studied using an ultrafast electron-beam X-ray tomograph with high temporal resolution of 2000 images per second. The modality allows visualisation and characterisation of the counter-current flow before and at the flooding point representing the upper operation limit. Two packings of the same type (Montz B1-MN) with different specific surface area were used to investigate the influence of the packing geometry on the spatial liquid distribution. The system studied was water/air at different gas and liquid loads. The results of the tomographic imaging and corresponding post-processing routines were validated by comparison with conventional draining measurements. (C) 2013 Elsevier B.V. All rights reserved.