Transesterification Process of Biodiesel with Potassium Glycerolate Catalyst
Abstract
The synthesis of potassium glycerolate catalyst from DES (Deep Eutectic Solvent – K2CO3-glycerol) catalyst was carried out by heating process with various temperatures. The resulting catalyst product was analyzed and the characteristics of the best potassium glycerolate catalyst had conductivity 4482 µS/cm, density 1.4858 g/cm3, Viscosity 121.574 cP, Freezing Point -8 ℃ and pH 14. The best temperature in the manufacture of potassium glycerolate catalyst was at 150 ℃. Alkaline pH is the main requirement to be a catalyst in the transesterification reaction. The trial results for the conversion of RBDPO to biodiesel with the optimum weight percent ratio of potassium glycerolate catalyst to RBDPO were 3.5%w, methanol 30%w, reaction temperature 65 oC, reaction time 4 hours resulted in total glycerol content in biodiesel 0.2285%, acid value 0.15%, density 0.8705 gr/cm3, viscosity 5.22 Cst, conversion 96.77% and 97.81% methyl ester content and all of these parameters all meet the biodiesel standards set by SNI-7182: 2015.
Keywords: Catalyst Characteristics, Potassium Glycerolate, Transesterification, BiodieselFull Text:
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W. Andalia, and I. Pratiwi, “The performance of NaOH and KOH catalysts in terms of the quality of biodiesel products produced from used cooking oil,” Global Techno Journal, vol. 7, pp. 66-73.
F. Ruhaiya, H. C. Nisa, M. Hafidh and E Kurniasih, “Transesterification of Palm Oil in Biodiesel Production Using Cao Heterogeneous Catalyst,” J. Eng. Technol., vol 15, pp. 23-29,2020.
S. Pradhana, J. Shen, S. Emami, P. Mohanty, S. Naik, A. K. Dalai, and M. J. T. Reaney, “Synthesis of Potassium Glyceroxide Catalyst for Sustainable Green Fuel (Biodiesel) Production,” J. Ind. Eng. Chem., vol. 46, pp. 266-272, 2017. doi: 10.1016/J.Jiec.2016.10.038.
S. Pradhan, J. Shen, S. Emami, S. Naik, and M. J. T. Reaney, “Fatty Acid Methyl Esters Production with Glycerol Metal Alkoxide Catalyst,” Eur. J. Lipid Sci. Technol., vol. 116, Pp. 1-21, 2014. doi: 10.1002/ejlt.201300477.
P. Kalhor and K. Gandhi, “Deep Eutectic Solvents as Catalysts for Upgrading Biomass,” Catalyst, vol. 11, pp. 178, 2021. doi: 10.3390/catal11020178.
V. G. Tacias-Pascacio and B. Torrestiana-Sánchez, “Comparison of acid, basic and enzymatic catalysis on the production of biodiesel after RSM optimization,” Renewable Energy, vol. 135, pp. 1-9, 2019. doi: 10.1016/j.renene.2018.11.107.
I., Aziz, M. N. Aristya, Hendrawati, and L. Adhani, “Improving the Quality of Crude Glycerol with an Adsorption Process Using Rice Husks," J. Valence Chem., vol. 4, pp. 34-41, 2018. doi: 10.15408/jkv.v4i1.7498.
M. Kouzu, J.-s. Hidaka, K. Wakabayashi, and M. Tsunomori, “Solid base catalysis of calcium glyceroxide for a reaction to convert vegetable oil into its methyl esters,” Appl. Catal., A, vol. 390, pp. 11-18, 2010. doi: 10.1016/j.apcata.2010.09.029.
E. Wang, J. Shen, Y. Wang, S. Tang, S. Emami, and M. J. Reaney, “Production of biodiesel with lithium glyceroxide,” Fuel, vol. 160, pp. 621-628, 2015. doi: 10.1016/j.fuel.2015.07.101.
S. A. Rachman., F. Hadiah., L. N. Komariah., T, and H. Soerawidjaja, “Deep Eutectic Solvent (Des) Based on Potassium Carbonate and Glycerol as a Catalyst for Biodiesel Production”, Simple Patent, ID. S000005808, April 10, 2023.
E. Praputri, E. Sundari, F. Firdau, and S. Sofyan, “The Use of Homogeneous and Heterogeneous Catalysts in the Hydrolysis Process of Cassava Rubber Starch into Glucose,” Ind. Res. Dev. J., vol. 8, pp. 105-110, 2018. doi: 10.24960/jli.v8i2.4189.105-110.
S. Pradhan, J. Shen, S. Emami, and P. Mohan, “Synthesis of potassium glyceroxide catalyst for sustainable green fuel (biodiesel) production,” J. Ind. Eng. Chem., vol. 46, pp. 266-272, 2016. doi: 10.1016/j.jiec.2016.10.038.
F. B. Gonzaga and S. P. Sobral, “A New Method for Determining the Acid value of Biodiesel Based on Coulometric Titration,” Talent J., vol. 97, pp. 199-203, 2012. doi: 10.1016/j.talanta.2012.04.017.
M. Elma, S. A. Suhendra, and Wahyuddin, “Process for Making Biodiesel from a Mixture of Coconut Oil and Used Cooking Oil”, Konversi, vol. 5, pp. 9-19, 2016. doi: 10.20527/k.v5i1.4772
Hadrah, M. Kasman, and F. M. Sari, “Analysis of Used Cooking Oil as Biodiesel Fuel with the Transesterification Process,” Environ. Cycle J., vol. 1, pp. 16-21, 2018. doi: 10.33087/daurling.v1i1.4.
M. Busyairi, A. Z. Muttaqin, I. Meicahyanti, and S. Saryadi, “The Potential of Used Cooking Oil as Biodiesel and the Effect of a Catalyst and Reaction Time on the Quality of Biodiesel Through the Transesterification Process,” Serambi Eng. J., vol. 5, pp. 933-940, 2020. doi: 10.32672/jse.v5i2.1920.
H. Setyawati, S. A. Sari, and H. N. Handayani, “The Effect of Adding Potassium Hydroxide Catalyst and Time in the Kapok Seed Oil Biodiesel Transesterification Process,” Flywheel J., vol. 3, pp. 13-17, 2010. doi: 10.36040/flywheel.v3i2.508.
DOI: http://dx.doi.org/10.24845/ijfac.v9.i1.1
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