重力沉降法测定水-柴油乳化液粒径分布.pdfVIP

第42卷第6期 中国测试 Vol.42 No.6 2016年6月 CHINA MEASUREMENT TEST June，2016 doi院10.11857/j.issn.1674-5124.2016.06.012 重力沉降法测定水-柴油乳化液粒径分布 刘 森袁 杨 强袁 卢 浩袁 许 萧 （华东理工大学化学工程联合国家实验室，上海 200237） 摘 要院针对目前油包水乳化液粒径分布测试困难的问题袁采用经流变系数修正后的重力沉降法对入口浓度 5000mg/L尧乳化泵转速1800r/min的油包水乳化液进行粒径分布测试袁并利用显微镜观测法进行结果验证遥对比两种 方法的测试结果袁重力沉降法测试结果中位粒径 13滋m袁粒径分布范围5耀40滋m袁显微镜观测法测试结果为中位直 径 15滋m袁粒径分布范围为5耀40滋m袁两种方法的结果一致性较高遥实验结果证明院经流变系数修正后的重力沉降法 可以准确测试油包水乳化液粒径分布袁且该方法测试原理简单尧操作简单尧测试成本小袁在工业现场测试上有一定的 优势遥 关键词院油包水乳液曰粒径分布曰重力沉降法曰流变系数 文献标志码院A 文章编号院1674-5124渊2016冤06-0050-04 Determination of water-diesel emulsion particle size distribution by gravity sedimentation method LIU Sen，YANG Qiang，LU Hao，XU Xiao （State Key Laboratory of Chemical Engineering，East China University of Science and Technology， Shanghai 200237，China） Abstract: The paper aims to discuss the issue of water-oil emulsion particle size distribution determination. Rheology-corrected gravity sedimentation method is used to test the particle size distribution of water-oil emulsion with entrance concentration of 5000mg/L and emulsion pump speed of 1800r/min，and the results are verified through microscope observation. Compared to the results of two methods，gravity sedimentation method gives the result for median diameter of 13滋m and particle size distribution range of 5-40滋m；whereas microscope observation method shows the median diameter of 15滋m and particle size distribution range of 5-40滋m. Since the results of both methods are consistent to each other，it proves that the rheology-corrected gravity se