甲醇柴油乳液稳定性研究

doi:10.13218/j.cnki.csdc.2014.07.081

摘要/Abstract

摘要： 在20 ℃下,研究了复配乳化剂及助乳化剂的含量、HLB值、甲醇含量、乳化时间及转速等对甲醇柴油乳液稳定性的影响规律。研究结果表明,随着复配乳化剂及助乳化剂的含量、HLB值和转速的增大,乳液的稳定性呈现先升高后降低的趋势。随着乳化时间的延长,稳定性先升高后趋于基本稳定。随着甲醇含量的增大,乳液的稳定性逐渐降低。实验得到的适宜操作参数:乳化时间为2 min、转速为5×2 800 r·min^-1、HLB值为4.5、乳化剂及助乳化剂质量分数均为3%、甲醇质量分数为15%。测得Sauter平均直径D=13 μm。

关键词: 甲醇柴油乳液, 稳定性, 乳化效率

Abstract: Effect of methanol content,different kinds and contents of emulsifying agent and co-emulsifying agent,HLB value,emulsifying time and stirring speed on the stability of methanol-diesel emulsions was investigated under 20 ℃.Experimental results showed that the stability of the emulsion firstly increases and then decreases with the increase of content of blend emulsifying agent and co-emulsifying agent,as well as HLB value and stirring speed.As the extension of emulsifying time,the stability of the emulsion increases firstly and then gradually reached a plateau.The stability of the emulsion decreases with the augment of the methanol content.Based upon the experimental results the suitable operating parameters were identified as:emulsifying time,2 min;stirring speed,5×2 800 r·min^-1;HLB value,4.5;content of both the emulsifying agent and co-emulsifying agent,3% for each;methanol content,15%.Sauter mean diameter of the emulsion particles was measured as 13 μm.

Key words: methanol-diesel emulsion, stability, emulsification efficiency

中图分类号:

O648.2+3

李静, 焦纬洲, 刘有智, 刘文丽, 许承骋, 郭亮. 甲醇柴油乳液稳定性研究[J]. 日用化学工业, 2014, 44(7): 366-369.

LI Jing, JIAO Wei-zhou, LIU You-zhi, LIU Wen-li, XU Cheng-cheng, GUO Liang. Stability of methanol-diesel emulsions[J]. China Surfactant Detergent & Cosmetics, 2014, 44(7): 366-369.

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