Separation of Glycerol from Biodiesel Oil Products Using High Voltage Electrolysis Method

Lety Trisnaliani, Ahmad Zaki


This study aims to separate glycerol from used cooking oil biodiesel products. This research is done by main process by analyzing free fatty acid level (FFA) to know the fat content of the oil in order to know the next process. This research is done by electrolysis process using high voltage. We done transesterification process by using methanol and NaOH as catalyst before performing the process of electrolysis with high voltage. Biodiesel is manufactured using a mini-scale stirred tank reactor (RATB) laboratory. This process is heated at temperature (35-60) oC, the ratio of used cooking oil and methanol (5:1, 6:1, 7:1, 8:1, 9:1) using a 0.1 N NaOH catalyst. The research obtained optimum reaction temperature yield highest percentage of rendement at temperature 60oC and ratio of used cooking oil and methanol 5:1 with percentage of rendement equal to 88,88, cetane number 48,4, kinematic viscosity 2,560, pour point 37,4 oF, flash point 131 oF, Conradson Carbon Residue (CCR) 0.09, and ASTM Colour 1.5. This shows that the manufacture of biodiesel with high microwave and high voltage utilization yields a high percentage of 88.88 and the product is biosolar-48.  

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Noureddini, H, and Zhu, D., (1997), Kinetic of Transesterification of Soybean Oil, J. Am.Oil Chem.Soc.,74, 1457-1463

Refaat, A. A. and El Sheltawy S. T. 2008. Time Factor in Microwave-Enhanced Biodiesel Production. Cairo: Department of Chemical Engineering Faculty of Engineering Cairo University.

Santoso, A. 2008. Utilization of Micro Waves to Improve Biodiesel Synthesis Efficiency As Renewable Energy. Muhammadiyah University. Malang.

[4] Varma, Rajender S. 1998. Solvent-free Organic Syntheses Using Supported Reagents and Microwave Irradiation. Texas: Department of Chemistry and Texas Research Institute for Environmental Studies (TRIES).

Lertsathapornsuk V., R.Pairintra dan K. Krisnangkura. 2004. Direct Conversion of Used Vegetable Oil to Biodiesel and Its Use As An Alternative Fuel For Compression Ignition Engine. King Mongkut's University of Technology Thonburi. Bangkok. Thailand.

Terigar, B.G. 2009. Advanced Microwave Technology For Biodiesel Feedstock Processing (Thesis). Aurel Vlaicu University of Arad. Romania.

Wahyuni, Silvira, Ramli, and Mahrizal. 2015. Effect of Process Temperature and Long Deposition on Quality of Biodiesel from WVO. Padang: FMIPA State University of Padang.

Fauzi, Irwan. 2013. Influence of Methanol Ratio, Temperature, and Reaction Time on Rendement Biodiesel in Transesterification In Situ Bintaro Seeds. Bogor: Department of Chemistry, Faculty of Mathematics and Natural Sciences Bogor Agricultural University.

Hardjono, A., (2000), Petroleum Technology, Gadjah Mada University Press, Yogyakarta.



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