Exploring Oil Palm Fruit Pulp for Direct Biodiesel Production via In-Situ Transesterification
DOI:
https://doi.org/10.33736/jaspe.9188.2025Keywords:
In-situ transesterification, biodiesel, extraction, palm oil pulp, co-solventAbstract
Conventional biodiesel production from palm oil requires separate extraction and transesterification steps, leading to increased costs and complexity. This study introduces an innovative in-situ transesterification method utilizing oil palm pulp, eliminating the need for oil extraction and simplifying the production process, which ultimately reduces costs. The effects of catalyst type, methanol-to-pulp ratio, and hexane addition on biodiesel yield were systematically evaluated. Gas chromatography-mass spectrometry (GC-MS) was employed to confirm the biodiesel purity and assess the composition. Results showed that sulphuric acid (H₂SO₄) outperformed sodium hydroxide (NaOH) due to reduced soap formation, which hindered phase separation. The highest biodiesel yield of 38.79% was achieved at 75°C, using 3 wt% sulphuric acid, a 2:1 methanol-to-pulp ratio (ml:g), and a 24-hour reaction time, with no hexane addition. The presence of hexane as a co-solvent had minimal impact on biodiesel yield. This study demonstrates a cost-effective, simplified process for biodiesel production from oil palm pulp, offering significant potential for scaling up production. Future research could focus on conducting a detailed cost analysis and exploring the scalability of the in-situ process to validate its commercial viability.
References
Yusuff, A. S., Adeniyi, O. D., Olutoye, M. A., & Akpan, U. G. (2017). A review on application of heterogeneous catalyst in the production of biodiesel from vegetable oils. Journal of Applied Science & Process Engineering, 4(2), 142–157. https://doi.org/10.33736/JASPE.432.2017
Ahmed, A. S., Rahman, M. R., Hamdan, S., Bin Bakri, M. K., & Mohamad Said, K. A. (2024). Prospect of biodiesel from sludge palm oil in Malaysia. Journal of Applied Science & Process Engineering, 11(1), 31–48. https://doi.org/10.33736/JASPE.6411.2024
Hassan Pranta, M., & Muk Cho, H. (2025). A comprehensive review of the evolution of biodiesel production technologies. Energy Conversion and Management, 328, 119623. https://doi.org/10.1016/J.ENCONMAN.2025.119623
Fauzi, A. H. M., Mat, R., & Johari, A. (2014). In-situ transesterification reaction for biodiesel production. Biomass and Bioenergy: Applications, 9783319075, 89-105. https://doi.org/10.1007/978-3-319-07578-5_5
Kurnia, J. C., Jangam, S. V, Akhtar, S., Sasmito, A. P., & Mujumdar, A. S. (2016). Advances in biofuel from oil palm and palm oil processing waste: A review, Biofuel Research Journal, 3(1), 332–346. https://doi.org/10.18331/BRJ2016.3.1.3
Prabaningrum, N., Ismail, L. B., & Subbarao, D. (2014). In situ methanolysis of jatropha curcas seeds in soxhlet extractor. Advanced Materials Research, 917, 72–79. https://doi.org/10.4028/WWW.SCIENTIFIC.NET/AMR.917.72
Tarigan, J. B., Ginting, M., Mubarokah, S. N., Sebayang, F., Karo-Karo, J., Nguyen, T. T., Ginting, J., & Sitepu, E. K. (2019). Direct biodiesel production from wet spent coffee grounds. RSC Advances, 9(60), 35109–35116. https://doi.org/10.1039/c9ra08038d
Kim, J. Y., & Yeom, S. H. (2020). Optimization of Biodiesel Production from Waste Coffee Grounds by Simultaneous Lipid Extraction and Transesterification. Biotechnology and Bioprocess Engineering, 25(2), 320–326. https://doi.org/10.1007/S12257-019-0353-6/METRICS
Al-Humairi, S. T., Lee, J. G. M., Salihu, M., & Harvey, A. P. (2022). Biodiesel production through acid catalyst in situ reactive extraction of Chlorella vulgaris foamate. Energies, 15(12), 4482. https://doi.org/10.3390/EN15124482
Zeng, J., Wang, X., Zhao, B., Sun, J., & Wang, Y. (2009). Rapid in situ transesterification of sunflower oil. Industrial and Engineering Chemistry Research, 48(2), 850–856. https://doi.org/10.1021/IE8008956
Jairurob, P., Phalakornkule, C., Na-Udom, A., & Petiraksakul, A. (2013). Reactive extraction of after-stripping sterilized palm fruit to biodiesel. Fuel, 107, 282–289. https://doi.org/10.1016/J.FUEL.2013.01.051
Baskar, G., & Aiswarya, R. (2016). Trends in catalytic production of biodiesel from various feedstocks. Renewable and Sustainable Energy Reviews, 57, 496–504. https://doi.org/10.1016/J.RSER.2015.12.101
Thangaraj, B., Solomon, R., Muniyandi, B., Ranganathan, S., & Lin, L. (2019). Catalysis in biodiesel production-A review, Clean Energy, 3(1). 2-23. https://doi.org/10.1093/ce/zky020
Zakaria, R., & Harvey, A. P. (2012). Direct production of biodiesel from rapeseed by reactive extraction/in situ transesterification. Fuel Processing Technology, 102, 53–60. https://doi.org/10.1016/J.FUPROC.2012.04.026
Qian, J., Wang, F., Liu, S., & Yun, Z. (2008). In situ alkaline transesterification of cottonseed oil for production of biodiesel and nontoxic cottonseed meal. Bioresource Technology, 99(18), 9009–9012. https://doi.org/10.1016/J.BIORTECH.2008.04.059
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