Ethanol-in-palm oil/diesel microemulsion-based biofuel: Phase behavior, viscosity, and droplet size
Ethanol-in-palm oil/diesel microemulsion-based biofuel: Phase behavior, viscosity, and droplet size
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DOI：
10.1016/j.fuel.2014.04.068
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发表时间：
2014-09
期刊：
影响因子：
7.4
通讯作者：
Noulkamol Arpornpong;C. Attaphong;A. Charoensaeng;D. Sabatini;S. Khaodhiar
中科院分区：
文献类型：
--
作者：
Noulkamol Arpornpong;C. Attaphong;A. Charoensaeng;D. Sabatini;S. Khaodhiar
环保意识的增强和资源的枯竭正在推动工业界利用可再生资源开发可行的燃料。植物油是一种正在考虑用于生产可再生燃料的替代品。表面活性剂反胶束微乳液可作为降低植物油高粘度的替代方法，且不会产生酯交换反应产生的化学废物。本研究的目的是研究表面活性剂饱和度、不饱和度和环氧乙烷基团对相行为、运动粘度和微乳液液滴尺寸的影响，目的是配制优化的基于表面活性剂的生物燃料。本研究研究了四种非离子表面活性剂：硬脂醇（饱和）、油醇（不饱和）、油酸甲酯（酯基不饱和）和 Brij-010（EO 基团）。研究发现，油酸甲酯不饱和表面活性剂的存在可以大大降低体系中的体积粘度并产生尺寸均匀的微乳液液滴，同时使用最少量的表面活性剂来溶解体系中的油包乙醇。因此，这些结果表明，与柴油相比，反胶束微乳液可以生产具有理想粘度和燃料特性的生物燃料。
Increased environmental awareness and depletion of resources are driving industry to develop viable fuels from renewable resources. Vegetable oils are one alternative being considered for the production of renewable fuels. Surfactant reverse micelle microemulsions can be used as an alternative method for reducing high viscosities of vegetable oil without chemical wastes generated from the transesterification reaction. The objective of this research is to study the effects of surfactant saturation, unsaturation, and ethylene oxide groups on the phase behavior, kinematic viscosity, and microemulsion-droplet size with the goal of formulating optimized surfactant based biofuel. Four nonionic surfactants, stearyl alcohol (saturated), oleyl alcohol (unsaturated), methyl oleate (unsaturated with ester group), and Brij-010 (EO groups), were investigated in this research. It was found that the presence of methyl oleate unsaturated surfactant can greatly reduce the bulk viscosity and produce uniformly size of microemulsion droplets while use the least amount of surfactant for solubilizing ethanol-in-oil in the system. Thus, these results show that reverse micelle microemulsion can produce biofuels with desirable viscosity and fuel properties as compared to diesel.