乳状液分散相在填充床中的聚结——填充介质的选择  

Coalescence of Emulsion in Packed Bed ——Selection of Packing Fibre

作　　者：邓修[1] 施亚钧[1] 戴星[1] 

机构地区：[1]华东化工学院化学工程研究所

出　　处：《化工学报》1991年第3期349-355,共7页CIESC Journal

基　　金：国家自然科学基金

摘　　要：将乳状液通过填充介质层使分散相聚结进而得以分离的方法,是一种操作简便、费用较低、且分离效率较高的方法.本文研究了乳状液的分散相及连续相在填充介质表面上不同的润湿性能与聚结效率的关系,从热力学角度导出润湿功差的概念,以作为正确选择填充介质的重要判据.由测定的表面性质数据,计算了若干种纤维作为填充介质处理O/W(水包油型)乳状液的润湿功差,并实测了各纤维层中乳状液分散相聚结的效率.The separation of dispersions in emulsions by passing through a coalescing fibrous bed has many advantages over other types ot separation methods in its simplicity and efficiency. A thermodynamic term, the difference in the work of wetting, which characterizes the difference in fiber wettability by the continuous and dispersed phases is presented in this paper. It can be used as an important criterion for the correct selection of fibre media to obtain a high degree of coalesence. Furthermore, several kinds ot commercial fibres were investigated for treating oil in water emulsions. It was found that polypropylenc fiber had an excellent coalescence efficiency.

关 键 词：填充床 乳状液 填料 分散相 聚结 

分 类 号：TQ053.5[化学工程]