4.7 Article

Ethanol-in-palm oil/diesel microemulsion-based biofuel: Phase behavior, viscosity, and droplet size

期刊

FUEL
卷 132, 期 -, 页码 101-106

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2014.04.068

关键词

Reverse micelle microemulsion; Phase behavior; Viscosity; Droplet size; Biofuel

资金

  1. Royal Golden Jubilee Ph.D. Program (RGJ) under the Thailand Research Fund
  2. Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn University, Thailand
  3. Sun Oil Company Chair (D.A. Sabatini) at the University of Oklahoma
  4. Institute for Applied Surfactant Research at the University of Oklahoma

向作者/读者索取更多资源

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. (C) 2014 Elsevier Ltd. All rights reserved.

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