Microemulsion systems containing diesel and colza oil as alternative fuels: Phase studies, interfacial tension and solubilization

Microemulsion systems containing diesel and colza oil as alternative fuels: Phase studies, interfacial tension and solubilization
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DOI：
10.1016/j.fuel.2013.09.083
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发表时间：
2014-01-01
期刊：
FUEL
影响因子：
7.4
通讯作者：
Vasilescu, Elena-Livia
Vasilescu, Elena-Livia
中科院分区：
工程技术1区
文献类型：
--
作者：
Balcan, Marieta;Mihailescu, Florentina-Cristina;Vasilescu, Elena-Livia

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介绍了用柴油和柴油-菜籽油混合物制备替代燃料微乳液的研究结果。表面活性剂为brij30和AOT，共表面活性剂为i-丁醇。采用拟三元相图和相行为研究了油/水/表面活性剂-助表面活性剂（OWSC）微乳液体系的水溶性。在Winsor (W)I (iii) ii （WII）序列中，相行为与油水界面张力（sigma(ow)）、分散颗粒的大小以及油水的溶解参数相关。结果表明，brij30的单相面积小于AOT，而阴离子-非离子表面活性剂的单相面积大于AOT。当NaCl存在于水相时，微乳面积减小。在iii型体系中，σ (low)值最小，油和水的溶解参数最高，分散颗粒尺寸最大。阴离子-非离子表面活性剂混合物和柴油-菜籽油混合物的水、油增溶参数最高。结果表明，柴油和柴油-菜籽油可与水混合制成柴油发动机用燃料。(C) 2013 Elsevier Ltd.版权所有。
The study presents results on alternative fuel microemulsions prepared with diesel and diesel-colza oil mixtures. The surfactants employed were Brij 30 and AOT and the cosurfactant was i-butanol. The water solubilization in oil/water/surfactant-cosurfactant (OWSC) microemulsion systems was studied by pseudo-ternary phase diagrams and phase behavior. In the Winsor (W)I WIII WII sequence, the phase behavior was correlated with the oil/water interfacial tension (sigma(ow)), the size of dispersed particles and the oil and water solubilization parameters. The results showed that the single phase area is smaller for Brij 30 than for AOT but larger for anionic-nonionic surfactant mixture. The microemulsion area decreases when NaCl is present in the aqueous phase. In the WIII systems, the values of sigma(ow) are the lowest, the oil and water solubilization parameters the highest and the dispersed particles have the biggest size. The highest water and oil solubilization parameters are obtained with the anionic-nonionic surfactant mixture and the diesel-colza oil blend. The results show that diesel and diesel-colza oil can be mixed with water to develop fuel for diesel engines. (C) 2013 Elsevier Ltd. All rights reserved.