Characteristics of Fin Baffle Packing Used in Rotating Packed Bed  

作　　者：栗秀萍 刘有智 

机构地区：[1]School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China [2]Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology, Taiyuan 030051, China

出　　处：《Chinese Journal of Chemical Engineering》2010年第1期55-60,共6页中国化学工程学报（英文版）

基　　金：Supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China(20060110003);the Youth Science and Technology Research Fund of Shanxi Province(2008021009-1);the Development Project Fund for Colleges and Universities of Shanxi Province(20091127)

摘　　要：For an alcohol/water system and with fin baffle packing,continuous distillation experiments were carried out in a rotating packed bed(RPB)system at atmospheric pressure.The effects of the average high gravity factor(β),liquid reflux ratio(R)and feedstock flux(F)on the momentum transfer and mass transfer were investigated. The gas phase pressure drop of RPB increased with the average high gravity factor,liquid reflux ratio and feedstock flux,which was 13.55-64.37 Pa atβof 2.01-51.49,R of 1.0-2.5,and F of 8-24 L·h1for a theoretical tray in the RPB with fin baffle packing.The investigation on the mass transfer in the RPB with different packings showed that the number of transfer units of RPB with a packing also increased with the average high gravity factor,reflux ratio and feedstock flux.It is found that the fin baffle packing(packing III)presents the best mass transfer performance and lowest pressure drop for the height equivalent to a theoretical plate(HETP),which is 6.59-9.84 mm.For an alcohol/water system and with fin baffle packing,continuous distillation experiments were carried out in a rotating packed bed（RPB）system at atmospheric pressure.The effects of the average high gravity factor（β）,liquid reflux ratio（R）and feedstock flux（F）on the momentum transfer and mass transfer were investigated. The gas phase pressure drop of RPB increased with the average high gravity factor,liquid reflux ratio and feedstock flux,which was 13.55-64.37 Pa atβof 2.01-51.49,R of 1.0-2.5,and F of 8-24 L·h1for a theoretical tray in the RPB with fin baffle packing.The investigation on the mass transfer in the RPB with different packings showed that the number of transfer units of RPB with a packing also increased with the average high gravity factor,reflux ratio and feedstock flux.It is found that the fin baffle packing（packing III）presents the best mass transfer performance and lowest pressure drop for the height equivalent to a theoretical plate（HETP）,which is 6.59-9.84 mm.

关 键 词：CHARACTERISTIC fin baffle packing DISTILLATION rotating packed bed 

分 类 号：TQ021.4[化学工程] TS761.7[轻工技术与工程—制浆造纸工程]