文献类型：期刊文献

中文题名：中空纤维PVA/PAN复合膜填料的乙醇水溶液精馏性能

英文题名：Distillation Performance of Using PVA/PAN Hollow Fiber Composite Membrane as Packing to Separate the Ethanol-Water Solution

作者：刘洋[1];许振良[1];马晓华[1]

机构：[1]华东理工大学化学工程联合国家重点实验室化学工程研究所膜科学与工程研发中心,上海200237

年份：2012

卷号：26

期号：2

起止页码：183

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：20122415111078);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金："十一五"国家科技重大专项(2009ZX02032)

语种：中文

中文关键词：PVA/PAN中空纤维复合膜;填料;乙醇水溶液;膜接触器

外文关键词：PVA/PAN hollow fiber composite membrane; packing; ethanol-water solution; membrane contactors

摘要：以乙醇/水溶液为分离对象,中空纤维PVA/PAN复合膜作为精馏填料,考察了不同膜组件的传质分离效率。实验结果表明:各种组件的分离效率均随塔釜加热功率的增加而减小;和大多数中空纤维膜接触器一样,其总传质系数Ky随中空纤维膜组件填充密度φ的增加而减少;相比于传统精馏填料而言,用中空纤维膜做精馏填料分离乙醇水溶液的分离效果更好,可以在常规填料不能操作的液泛线以上进行操作。当塔釜加热功率为120 W,45根中空纤维膜封装在内径为1.6 cm玻璃管中的传质单元高度(HTU)为5.64 cm。
PVA/PAN hollow fiber composite membrane modules were used as distillation packing for the separation of ethanol-water solution. The mass-transfer separation efficiency of different modules was studied. The experiments show that the separation efficiency of different modules decreases with the increase of heating power supply in the column bottom. Like most hollow fiber membrane contactors, the overall mass transfer coefficient Ky decreases with the increase of packing fraction of the hollow fiber membrane modules. Comparing with the traditional packing used for distillation, the hollow fiber membrane used as packing gives better separation efficiency for the separation of ethanol-water solution, and it could operate in the region over the liquid flooding line of the traditional packing. When the heating power is 120 W and there are 45 hollow fiber composite membranes in the glass tube （inner diameter is 1.6 cm）, the height of transferring units （HTU） of this module is 5.64 cm.