Fuel Properties of a Two-Phase Biodiesel Emulsion

Abstract:

Biodiesel is one of the most promising alternative clean fuels to fossil fuel, which can effectively reduce the emissions from fossil fuel burning. The high oxygen content in biodiesel can promote the burning process, but it can also increase NOx formation simultaneously, when biodiesel is used as fuel. Fuel emulsification is considered to be effective in reducing NOx emissions. In this study, soybean oil was used as raw oil to produce biodiesel by transesterification reaction. The biodiesel product was then emulsified with water and emulsifying surfactant to form water-in-oil (w/o) biodiesel emulsion. The biodiesel emulsion composed of 1.5% polyoxyethylated castor oil (EL-12), 0.7% lethicin and 0.5% cetylpyridinium chloride (CPC) was proved to have the better emulsifying activity (EA) and emulsifying stability (ES) values, and higher combustion heat than those of the neat biodiesel and reference biodiesel emulsion (with 2.7% EL-12 as the emulsifying surfactant).

• Periodical: Advanced Materials Research (Volumes 418-420)
• Pages: 254-259
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.418-420.254
• Online since: December 2011
• Authors: Ning Ning Chu, Yan Xu, Yu Jiu Ma, Jian Xun Wang, Xue Bing Li, Li Sheng Wang
• Keywords: Bio-Diesel, Cetylpyridinium Chloride, EL-12, Emulsion, Lethicin, Water-in-Oil

References

[1] S. Altun: Energy Educ. Sci. Technol.-Part A Vol. 27 (2011), p.79

[2] M.A. Hess, M.J. Haas, T.A. Foglia and W.N. Marmer: Energy Fuels Vol. 19 (2005), p.1749

[3] J.P. Szybist, S.R. Kirby and A,L, Boehman: Energy Fuels Vol. 19 (2005), p.1484

[4] D.Y.C. Leung, Y. Luo and T.L. Chan: Energy Fuels Vol. 20 (2006), p.1015

[5] S. Fernando, C. Hall and S. Jha: Energy Fuels Vol. 20 (2006), p.376

[6] J.W. Park, K.Y. Huh and J.H. Lee: Proc. Inst. Mech. Eng. Part D-J. Automob. Eng. Vol. 215 (2001), p.83

[7] T.H. Defries, S. Kishan, M.V. Smith, J. Anthony, T. Ullman, R. Matthews and D. Lewis: The Texas diesel fuels project, part 1: development of TxDot-specific test cycles with emphasis on a "route" technique for comparing fuel/water emulsions and conventional diesel fuels. SAE technical paper (2004), 2004-01-0090.

DOI: 10.4271/2004-01-0090

[8] Y. Zeldovich: Acta Phys. URSS Vol. 21 (1946), p.577

[9] J.B. Heywood: Internal Combustion Engine Fundamentals (McGrawhill, New York 1988).

[10] H.S. Sii, H. Masjuki and A.M. Zaki: J. Am. Oil Chem. Soc. Vol. 72 (1995), p.905

[11] M.Y.E. Selim and S.M.S. Elfeky: Appl. Therm. Eng. Vol. 21 (2001), p.1565

[12] A. Lif and K. Holmberg: Adv. Colloid Interface Sci. Vol. 123 (2006), p.231

[13] P. Sun, Z. Chen, D.Q. Mei and L.H. Ye: Study of Composition of Biodiesel Microemulsion and its Effect on Engine Emission, The 1st Annual Meeting Papers of Clean Fuel Oil Branch of China Internal Combustion Engine Society, China (2007) (In Chinese)

[14] Y.P. Li, D.L. Yi, Z.Z. Cheng, C.J. Chen, D.F. Shu, M. Pu and Y. Zhang: Renew. Energy Resour. Vol. 27 (2009), p.33 (In Chinese)

[15] C.Y. Lin and H.A. Lin: Fuel Process. Technol. Vol. 89 (2008), p.1237

[16] C.Y. Lin and K.H. Wang: Fuel Vol. 82 (2003), p.1367

[17] G.L. Chen and D. Tao: Fuel Process. Technol. Vol. 86 (2005), p.499

[18] American Society for Testing and Materials, ASTM D1298-99e2, Standard Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method (2005).

DOI: 10.1520/d1298-99r05

[19] C.Y. Lin and K.H. Wang: Fuel Vol. 83 (2004), p.507

[20] M.J. Rosen: Surfactants and Interfacial Phenomena (3rd ed. Wiley, New Jersey 2004).

[21] C.Y. Lin and S.A. Lin: Fuel Vol. 86 (2007), p.210