硅橡胶复合膜渗透蒸发串联阻力扩展模型研究  

Extending Model Study for Serial Resistance of Osmosis Evaporation in Compound Membrane of Silicon Rubber

作　　者：石尔[1] 肖泽义[2] 衣晓青[1] 黄卫星[2] 

机构地区：[1]长沙理工大学能源与动力工程学院,湖南长沙410076 [2]四川大学化学工程学院,四川成都610065

出　　处：《化肥设计》2012年第3期17-20,共4页Chemical Fertilizer Design

基　　金：湖南省教育厅资助项目(08C114)

摘　　要：介绍了国内外硅橡胶复合膜渗透蒸发脱除微量有机物的传质研究现状;提出了硅橡胶复合膜渗透蒸发串联传质阻力扩展模型;分析了渗透蒸发过程各部分传质阻力的影响因素,包括液相边界层、膜的致密皮层、膜的多孔支撑层;得到了便于工程设计的计算方法。结果表明,该模型对进一步的应用研究以及渗透蒸发过程的优化具有指导意义。Author has introduced the present study situation of the mass transfer of removing the trace organic substance by silicon rubber compound membrane osmosis evaporation at home and abroad; has presented the extending mode/for mass transfer resistance in series used in the silicon rubber com- pound membrane osmosis evaporation; has analyzed the partial resistance in osmosis evaporation process, including the boundary layer of liquid phase, tight skin layer of membrane and effeeting factor for mass transfer resistance of porous supporting layer; has obtained the calculation method to facilitate en- gineering design. Result indicates that this model has the guiding significance for further application/study and optimizing osmosis evaporation process as well.

关 键 词：硅橡胶复合膜 渗透蒸发 传质 串联传质阻力扩展模型 

分 类 号：TQ333.93[化学工程—橡胶工业]