Synthesis of Biodisiel from Used Cooking Oils Catalyzed by Solid Acid

Abstract:

The synthesis of biodiesel expressed as fatty acid methyl ester (FAME) were studied to achieve an economic and practical method for utilization of used cooking oil (UCO). UCO samples with the acid value of more than 80 mgKOH/g mixed with methanol were heterogeneously catalyzed by solid aminosulfonic acid under some conditions . The conversion of UCO into FAME was 86.0% at the reaction time of 2 hours, mole ratio of methanol to UCO of 5:1, showing much higher catalyzed activity of solid aminosulfonic acid. the samples of FAME prepared from UCO was analyzed by GC/MS and the results showes that the majority of biodiesel has fatty acid methyl esters of carbon lengths from C₁₄–C₂₄, with an average of C₁₈ methyl ester.

• Periodical: Advanced Materials Research (Volumes 236-238)
• Pages: 496-500
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.236-238.496
• Online since: May 2011
• Authors: Zheng Zai Cheng, Su Su Lin, Rui Lei, Xiao Chao Yan, Yu Jing Nie
• Keywords: Acid-Catalyzed Methanolysis, Bio-Diesel, Heterogeneous Catalyst, Solid Acid, Transesterification, Used Cooking Oils (UCO)

References

[1] M.I Al-Widyan and A.O. Al-shyoukh: Biores. Technol. Vol. 85(2002), p.253

[2] D.Y.C. Leung and Y.Guo: Fuel Process Technol. Vol. 87 (2006), p.883

[3] Y. Zhang, M.A. Dube, D.D. McLean and M.Kates: Biores. Technol. Vol. 90( 2003), p.229

[4] F. Ma and MA Hanna: Biores. Technol. Vol. 70 (1999), p.1

[5] G.M. Tashtoush, M.I. Al-Widyan and A.O. Al-Shyoukh: Energy Convers. Manage. Vol.45 (2004), p.2697