Biodiesel Production from Waste Cooking Oil via Interesterification Reaction: Effects of Cajuput Oil Biocatalyst Concentration and Reaction Time
DOI:
https://doi.org/10.70609/g-tech.v10i1.9011Keywords:
Biodiesel, Interesterification, Cajuput Oil Biocatalyst, Reaction Time, Crude YieldAbstract
Interesterification processes using homogeneous or heterogeneous catalysts generally require additional separation steps, reducing efficiency and increasing operational costs. Cajuput oil, whose main active compound is 1,8-cineole, contains aromatic functional groups that show potential as a biocatalyst and can be applied without a separation step at the end of the reaction, thereby improving process efficiency. This study aims to determine the optimum conditions for the interesterification of waste cooking oil based on cajuput oil biocatalyst concentration and reaction time. Waste cooking oil, methyl acetate, and cajuput oil biocatalyst at concentrations of 0.5–1.5% were reacted in a two-neck round-bottom flask reactor at 60°C, a stirring speed of 300 rpm, an oil-to-methyl acetate molar ratio of 1:6, and reaction times ranging from 20 to 100 min. After the reaction, unreacted methyl acetate was removed by distillation, and the residue was characterized as the final product. The optimum conditions were achieved at a biocatalyst concentration of 1% and a reaction time of 60 min, producing a crude yield of 78.80%, an acid value of 0.45 mg KOH/g, a density of 0.88 g/mL, and a viscosity of 2.94 cSt, which comply with SNI 7182:2015, along with a FAME concentration of 19,406.50 mg/L. The novelty of this research lies in the biodiesel production process that eliminates the separation of the by-product triacetin and the cajuput oil biocatalyst, as both function as bio-additives in the biodiesel. Consequently, the process becomes simpler and more efficient, without requiring lengthy or complex processing steps.
References
Ansori, A., Sekaringgalih, R., Raharjo, S. H., Afred, M. Y., & Nurani, Y. (2025). Utilization of Microwave Technology in the Esterification Process of Nyamplung Oil (Calophyllum inophyllum L.) for Biofuel Feedstock. BERKALA SAINSTEK, 13(2), 87–95. https://doi.org/10.19184/bst.v13i2.53705
Casas, A., Ramos, M. J., & Pérez, Á. (2011). New trends in biodiesel production: Chemical interesterification of sunflower oil with methyl acetate. Biomass and Bioenergy, 35(5), 1702–1709. https://doi.org/10.1016/j.biombioe.2011.01.003
Casas, A., Ruiz, J. R., Ramos, M. J., & Pérez, Á. (2010). Effects of triacetin on biodiesel quality. Energy and Fuels, 24(8), 4481–4489. https://doi.org/10.1021/ef100406b
Chuepeng, S., & Komintarachat, C. (2018). Interesterification optimization of waste cooking oil and ethyl acetate over homogeneous catalyst for biofuel production with engine validation. Applied Energy, 232(July), 728–739. https://doi.org/10.1016/j.apenergy.2018.09.085
Daryono, E. D., & Dewi, R. K. (2022). BIODIESEL FROM PALM OIL WITH INTERESTERIFICATION PROCESS USING BIO-CATALYST CAJUPUT OIL. Konversi, 11(2), 59–64. https://doi.org/10.20527/k.v11i2.13982
Daryono, E. D., Jimmy, J., & Setyawati, H. (2024). Production of Biodiesel Without Catalyst Separation with Palm Oil Interesterification Process Using Essential Oil Biocatalyst. Chemistry & Chemical Technology, 18(3), 356–362. https://doi.org/10.23939/chcht18.03.356
Daryono, E. D., Wardana, I. N. G., Cahyani, C., & Hamidi, N. (2021). Biodiesel production process without glycerol by-product with base catalyst: effect of reaction time and type of catalyst on kinetic energy and solubility. IOP Conference Series: Materials Science and Engineering, 1053(012058), 1–7. https://doi.org/10.1088/1757-899x/1053/1/012058
Daryono, E. D., Wardana, I. N. G., Cahyani, C., & Hamidi, N. (2022). Interesterification Process of Palm Oil Using Base Catalyst: The Effect of Stirring Speed and Type of Catalyst on Kinetic Energy and Dipole Moment. International Journal on Advanced Science, Engineering and Information Technology, 12(4), 1580–1585.
Daryono, E. D., Wardana, I. N. G., Cahyani, C., & Hamidi, N. (2025). Study of the interesterification process of palm oil into methyl esters with biocatalysts of aromatic compounds. Chemistry & Chemical Technology, 19(3), 473–481. https://doi.org/10.23939/chcht19.03.473
Daryono, E. D., Widi, I. K. A., & Purnomo, Y. (2025). THE EFFECTIVE PROCESS OF WASTE COOKING OIL BIODIESEL PRODUCTION BY INTERESTERIFICATION WITH REACTION USING CURCUMIN BIOCATALYST. Eastern-European Journal of Enterprise Technologies, 4(6–136), 14–22. https://doi.org/10.15587/1729-4061.2025.333086
dos Santos Ribeiro, J., Celante, D., Simões, S. S., Bassaco, M. M., da Silva, C., & de Castilhos, F. (2017). Efficiency of heterogeneous catalysts in interesterification reaction from macaw oil (Acrocomia aculeata) and methyl acetate. Fuel, 200, 499–505. https://doi.org/10.1016/j.fuel.2017.04.003
Eevera, T., Rajendran, K., & Saradha, S. (2009). Biodiesel production process optimization and characterization to assess the suitability of the product for varied environmental conditions. Renewable Energy, 34(3), 762–765. https://doi.org/10.1016/j.renene.2008.04.006
Ferreira, M. O., Cardozo Filho, L., Silva, C., & Sousa, E. M. B. D. (2014). Glycerol as additive for fuels - A review. Latin American Applied Research, 44(1), 47–56.
Hussein, M., & Idris, M. (2024). Studi Eksperimental Titik Nyala dan Viskositas Biodiesel Diproduksi dari Minyak Goreng Bekas. IRA Jurnal Teknik Mesin Dan Aplikasinya (IRAJTMA), 3(1), 86–92. https://doi.org/10.56862/irajtma.v3i1.101
Manojkumar, N., Muthukumaran, C., & Sharmila, G. (2020). A comprehensive review on the application of response surface methodology for optimization of biodiesel production using different oil sources. Journal of King Saud University - Engineering Sciences, xxxx. https://doi.org/10.1016/j.jksues.2020.09.012
Mardawati, E., Hidayat, M. S., Rahmah, D. M., & Rosalinda, S. (2019). Produksi Biodiesel dari Minyak Kelapa Sawit Kasar Off Grade dengan Variasi Pengaruh Asam Sulfat pada Proses Esterifikasi Terhadap Mutu Biodiesel yang Dihasilkan. Jurnal Industri Pertanian, 01(03), 46–60.
Marlina, E., Basjir, M., Ichiyanagi, M., Suzuki, T., Gotama, G. J., & Anggono, W. (2020). The Role of Eucalyptus Oil in Crude Palm Oil As Biodiesel Fuel. Automotive Experiences, 3(1), 33–38. https://doi.org/10.31603/ae.v3i1.3257
Muarif, A., Fatnia, F., Meriatna, M., Dewi, R., & Bahri, S. (2024). PENGARUH SUHU DAN WAKTU REAKSI TERHADAP HASIL SINTESIS BIODIESEL DARI MINYAK JELANTAH DENGAN PENAMBAHAN KATALIS CANGKANG TELUR AYAM. Jurnal Teknologi Kimia Unimal, 13(1), 58–71. https://doi.org/10.29103/jtku.v13i1.16432
Mulminin, A., Megawati, E., Ariyani, D., Warsa, I. K., Monde, J., & Sapril. (2023). Pengaruh Waktu Reaksi Pembuatan Biodiesel dari Minyak Jelantah dengan Bantuan Katalis Basa NaOH terhadap Sifat Fisika dan Kimia Produk Biodiesel. Journal of Education, 05(02), 3817–3825.
Orchidantya, N. S., Mas’udah, & Sandra Santosa. (2023). PENGARUH RASIO KATALIS CaO-NaOH DAN WAKTU REAKSI TRANSESTERIFIKASI TERHADAP KUALITAS BIODIESEL DARI MINYAK SAWIT. DISTILAT: Jurnal Teknologi Separasi, 9(3), 330–337. https://doi.org/10.33795/distilat.v9i3.3154
Permana, E., Naswir, M., Sinaga, M. E. T., Alfairuz, H., & Murti, S. S. (2020). KUALITAS BIODIESEL DARI MINYAK JELANTAH BERDASARKAN PROSES SAPONIFIKASI DAN TANPA SAPONIFIKASI. JTT (Jurnal Teknologi Terapan), 6(1), 26–31.
Prasetyo, J. (2018). STUDI PEMANFAATAN MINYAK JELANTAH SEBAGAI BAHAN BAKU PEMBUATAN BIODIESEL. Jurnal Ilmiah Teknik Kimia UNPAM, 2(2), 1–10.
Quoc, L. P. T. (2021). PHYSICOCHEMICAL PROPERTIES, CHEMICAL COMPONENTS, AND ANTIBACTERIAL ACTIVITY OF MELALEUCA CAJUPUTI POWELL ESSENTIAL OIL LEAVES FROM QUANG TRI PROVINCE, VIETNAM. Bulletin of the Chemical Society of Ethiopia, 35(3), 677–683. https://doi.org/10.4314/bcse.v35i3.18
Ramadhani, D. R., Zamhari, M., & Junaidi, R. (2025). Optimalisasi Proses Transesterifikasi Minyak Jelantah Menjadi Biodiesel dengan Variasi Waktu dan Konsentrasi Katalis. Chemical Engineering Journal Storage, 5(4), 665–681. https://doi.org/10.29103/cejs.v5i4.23757
Sandra, S., Susilo, B., & Aulia, N. I. (2021). SINTESIS MINYAK KELAPA SAWIT (Elaeis guineensis) MENJADI BIODIESEL MENGGUNAKAN METIL ASETAT DENGAN METODE INTERESTERIFIKASI. Jurnal Ilmiah Rekayasa Pertanian Dan Biosistem, 9(1), 1–10. https://doi.org/10.29303/jrpb.v9i1.176
Sativa, F. I. O., Cahyani, T. A. W., Nurfitri, R. N., Purwanti, E. M. A., Alfiniam, A. F., & Daryono, E. D. (2024). Proses interesterifikasi minyak jelantah menjadi metil ester dengan biokatalis ekstrak daun salam (Syzygium polyanthum). Jurnal Integrasi Proses, 13(1), 29–33. http://jurnal.untirta.ac.id/index.php/jip
Shao, J., & Agblevor, F. (2015). New rapid method for the determination of total acid number (TAN) of bio-oils. American Journal of Biomass and Bioenergy, 4(1), 1–9. https://doi.org/10.7726/ajbb.2015.1001
Simões, S. S., Ribeiro, J. S., Celante, D., Brondani, L. N., & Castilhos, F. (2020). Heterogeneous catalyst screening for fatty acid methyl esters production through interesterification reaction. Renewable Energy, 146, 719–726. https://doi.org/10.1016/j.renene.2019.07.023
Sufin, T., & Daryono, E. D. (2024). PENGARUH SUHU DAN KONSENTRASI MINYAK ATSIRI SEREH TERHADAP SIFAT FISIK MINYAK JELANTAH SEBAGAI BAHAN BAKAR PENGGANTI BIODIESEL. Jurnal Integrasi Proses, 13(2), 141–146. http://jurnal.untirta.ac.id/index.php/jip
Turnip, J. R., Tarigan, T. F. L., & Sinaga, M. S. (2017). PENGARUH MASSA KATALIS DAN WAKTU REAKSI PADA PEMBUATAN BIODIESEL DARI LIMBAH MINYAK JELANTAH DENGAN MENGGUNAKAN KATALIS HETEROGEN K2O DARI LIMBAH KULIT KAKAO. Jurnal Teknik Kimia USU, 6(2), 24–29.
Venriza, O., & Pratama, I. L. (2023). Temperature Effect of Water Content at Hoarding Process Biosolar For Quality Maintain. Jurnal Ilmiah Teknik Kimia, 7(1), 1–6. https://doi.org/10.32493/jitk.v7i1.26783
Wardoyo, Widodo, A. S., Wijayanti, W., & Wardana, I. N. G. (2021). The Role of Areca catechu Extract on Decreasing Viscosity of Vegetable Oils. The Scientific World Journal, 2021, 1–8. https://doi.org/10.1155/2021/8827427
Youssef, O., Khaled, E., Aboelazayem, O., & Farrag, N. (2024). Glycerol-Free Biodiesel via Catalytic Interesterification: A Pathway to a NetZero Biodiesel Industry. Sustainability (Switzerland) , 16(12), 1–16. https://doi.org/10.3390/su16124994
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