陶瓷微滤膜分散传质性能  

MASS TRANSFER CHARACTERISTICS WITH CERAMIC MACROPOROUS MEMBRANE AS DISPERSION MEDIUM

作　　者：陈桂光[1] 孙永[1] 蒲煜[1] 骆广生[1] 

机构地区：[1]清华大学化学工程系,北京100084

出　　处：《化工学报》2002年第6期644-647,共4页CIESC Journal

基　　金：国家自然科学基金资助项目 (No 2 9976 0 2 1)~~

摘　　要：Membrane dispersion extraction is a process with a macroporous membrane as dispersion medium. In this paper, 30%TBP(in kerosene)/nitric acid/H 2O is chosen as an experimental system. The mass transfer characteristics are studied in two kinds of membrane dispersion modules.In order to improve mass transfer performance, a concentric inner element is designed. The effects of transmembrane pressure and the flux of continuous phase on efficiency, as well as on the flux of dispersion phase are investigated. The experimental results show that the flux of disperse phase is increased with an increase of the transmembrane pressure. However, it could hardly be influenced by the flux of continuous phase. mass transfer efficiency decreases slightly when the pressure or the flux of continuous phase is increased. The concentric inner element can improve the mass transfer performance greatly. Membrane dispersion extraction can be carried out with a higher mass transfer efficiency.Membrane dispersion extraction is a process with a macroporous membrane as dispersion medium. In this paper, 30%TBP(in kerosene)/nitric acid/H 2O is chosen as an experimental system. The mass transfer characteristics are studied in two kinds of membrane dispersion modules.In order to improve mass transfer performance, a concentric inner element is designed. The effects of transmembrane pressure and the flux of continuous phase on efficiency, as well as on the flux of dispersion phase are investigated. The experimental results show that the flux of disperse phase is increased with an increase of the transmembrane pressure. However, it could hardly be influenced by the flux of continuous phase. mass transfer efficiency decreases slightly when the pressure or the flux of continuous phase is increased. The concentric inner element can improve the mass transfer performance greatly. Membrane dispersion extraction can be carried out with a higher mass transfer efficiency.

关 键 词：陶瓷微滤膜 分散传质 性能 膜分散式萃取器 传质效率 

分 类 号：TQ028.8[化学工程] TQ021.4