Mass transfer characteristics in a rotating packed bed with split packing  

作　　者：Youzhi Liu Deyin Gu Chengcheng Xu Guisheng Qi Weizhou Jiao 

机构地区：[1]Shanxi Province Key Laboratory of Higee-oriented Chemical Engineering, North University of China [2]Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology, North University of China

出　　处：《Chinese Journal of Chemical Engineering》2015年第5期868-872,共5页中国化学工程学报（英文版）

基　　金：the National Natural Science Foundation of China(21376229,21206153)

摘　　要：The rotating packed bed （RPB） with split packing is a novel gas-liquid contactor, which intensifies the mass transfer processes controlled by gas-side resistance. To assess its efficacy, the mass transfer characteristics with adjacent rings in counter-rotation and co-rotation modes in a split packing RPB were studied experimentally. The physical absorption system NH3-H2O was used for characterizing the gas volumetric mass transfer coeffi- cient （kyae） and the effective inteffacial area （ae） was determined by chemical absorption in the CO2-NaOH sys- tem. The variation in kyae and ae with the operating conditions is also investigated. The experimental results indicated that kyae and ae for counter-rotation of the adjacent packing rings in the split packing RPB were higher than those for co-rotation, and both counter-rotation and co-rotation of the split packing RPB were superior over conventional RPBs under the similar ooerating conditions.The rotating packed bed(RPB) with split packing is a novel gas–liquid contactor, which intensifies the mass transfer processes controlled by gas-side resistance. To assess its efficacy, the mass transfer characteristics with adjacent rings in counter-rotation and co-rotation modes in a split packing RPB were studied experimentally.The physical absorption system NH3–H2O was used for characterizing the gas volumetric mass transfer coefficient(kyae) and the effective interfacial area(ae) was determined by chemical absorption in the CO2–NaO H system. The variation in kyaeand aewith the operating conditions is also investigated. The experimental results indicated that kyaeand aefor counter-rotation of the adjacent packing rings in the split packing RPB were higher than those for co-rotation, and both counter-rotation and co-rotation of the split packing RPB were superior over conventional RPBs under the similar operating conditions.

关 键 词：Rotating packed bed （RPB） Split packing Mass transfer Physical absorption Chemical absorption 

分 类 号：TQ051.1[化学工程]