助乳化剂对甲醇柴油乳液性能的影响研究  

Effect Research on Performance of Methanol-Diesel Emulsions Made by Co-Emulsifying Agent

作　　者：李静 焦纬洲[2] 刘有智[2] 张珺[2] 许承骋 

机构地区：[1]阳煤集团太原化工新材料有限公司,山西太原030051 [2]中北大学山西省超重力化工工程技术研究中心,山西太原030051

出　　处：《中北大学学报（自然科学版）》2014年第6期714-719,共6页Journal of North University of China(Natural Science Edition)

基　　金：国家自然科学基金资助项目(21206153);山西省青年科技研究基金资助项目(2010021007-2);中北大学研究生创新基金项目(20141124)

摘　　要：助乳化剂对甲醇柴油乳液的性能具有一定的影响,在恒定实验温度为25℃,固定乳化时间为2 min,甲醇含量为15%,转速为5×2 800 r/min,复配乳化剂为3%的情况下,研究了助乳化剂种类、含量及不同结构的醇对甲醇柴油乳液的稳定性能、流变性能及其他性能的影响规律.实验结果表明:随着助乳化剂含量的增加,乳液的稳定性呈先升高后降低的趋势,且正构型醇比异构型醇有较好的乳化效果.选择助乳化剂为正丁醇,且含量为1%时,形成的甲醇柴油乳液为牛顿型流体,黏度为4.68 m Pa·s,铜片腐蚀等级为1b,色度为2.5,闪点为57℃,凝点为-8℃,均满足国家柴油燃用标准.Co-emulsifying agent had an effect on performance of methanol - diesel emulsions, the effect of dif- ferent kinds and different percentages of co-emulsifying agent, different structures of the same alcohol on the stability, rheological characteristics and other performances of methanol-diesel emulsions were investigated un- der the conditions of constant temperature 25 ℃ , emulsifying time was 2 min, methanol content was 15%, stirring speed was 5 ~ 2 800 r/min, percentages of emulsifying agent was 3 %. The experiment results show that the stability of the emulsion firstly increases and then decreases with the increasing of different percentag- es of co-emulsifying agent, and n-alkanol is better than isomers. 1-butanol is selected as co-emulsifying agent and percentages of co-emulsifying agent is 1%, the emulsions appear as proximately Newton fluids, the vis- cosity of emulsions is 4.68 mPa＇s, corrosion to copper standards is 1 b, chroma is 2.5, flash point is 57 ℃ , condensation point is -8 ℃, which meet the national standards.

关 键 词：甲醇柴油乳液 助乳化剂 性能 

分 类 号：TE626.24[石油与天然气工程—油气加工工程]