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Journal : Jurnal Teknik

Physicochemical Characterization and Epoxidation of Jatropha Curcas Oil for Eco-Friendly Engine Lubricant Applications Putra, Agus Dwi; pradani, Yayi Febdia; Dewi Izzatus Tsamroh; Zakaria, Yahya; Mahfudi Sahli Subandi
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.651

Abstract

This study aims to explore the potential of castor oil (Jatropha curcas L.) as a plant-based alternative engine lubricant and compare it to commercial mineral-based lubricants. The research process includes drying Jatropha seeds and epoxidizing the oil using oxidizing agents (H₂O₂) and (CH₃COOH) with variations of (1:0.075; 1:0.15; 1:0.225; and 1:0.30). Chemical testing was conducted to analyze the acid number of the oil, while physical testing was carried out to measure its viscosity index, flash point, and pour point. The results show that Jatropha oil has an acid number of 5.30, a viscosity index of 217, a flash point of 270°C, and a pour point of 0°C. Therefore, Jatropha oil demonstrates potential as a base material for engine lubricants due to its relatively high flash point, which approaches that of polyol ester (POE)-based oils. However, further modification with additives is required to lower its pour point, ensuring it remains fluid in colder climates such as those in subtropical regions.
Co-Authors Abdul Wahab Ahmad Muflih Ahmad Saepuddin Alfi Fadliana Annisa' Carina Bella Cornelia Tjiptady Bella Cornelia Tjiptady Bisyri Nur Wahid Candra Pradhana Chuzaimatul Fitriyah Dedi Romadon Dekki Widiatmoko Dewi Izzatus Tsamroh Dewi Puspitasari Diama Rizky Septiawan Dimas Hani Saputra Eko Surjadi Erlillah Rizqi Kusuma Pradani Erlillah Rizqi Kusuma Pradani Etik Puspitasari, Etik Faidillah, Hikmal Fani Nuryanto Faqih Fadillah Faradilla Fauziyah Risnawati Farahdilla Andhika Farida, Nike Nur Firmansyah, Hilmi Iman Firmansyah Fitriani, Indah Martha Galuh Zuhria Kautzar Herawati, Andini Sofia Himawan, Citrakara Upendra S.K. Indah Martha Fitriani Intan Fadhilah, Intan Jayaputra, Harsalim Aimunandar Jibril Maulana Johan Wayan Dika Khambali, Khambali Luchyto Chandra Permadi Permadi M Rizki Chanda M. Zannur Habib Mahfudi Sahli Subandi Maulana, Afif MEDITAMA, RATNA Mochamad Sulaiman Mohammad Omar AL Momani Monasari, Ratna Muhammad Ana Zamzami Muhammad Arif Nur Huda Muhammad Ilman Nur Sasongko Nicko Nur Rakhmaddian Nicko Nur Rakhmaddian Nicko Nur Rakhmaddian, Nicko Nur Nike Nur Farida Nur Farida, Nike Pancayudha, Den Arsyah Pilar Purwady, Ary Kusuma Rahman, Rifki Zainur Ratna Fajarwati Meditama Ratna Fajarwati Meditama Ratna Monasari Ridho Herasmara Rifki Zainur Rahman Rifki Zainur Rahman Rizky Septiawan, Diama Rohman, Mojibur Saifuddin Karim Siti Duratun Nasiqiati Rosady Sugeng Pramudibyo Susanto Susanto Syamsiar, Syamsiar Ulfiana Ihda Afifa Viyus, Vinan Wijoyo Wijoyo Wulandari, Winda Andrini Yahya Zakaria Yayi Febdia Pradani Yayi Pradani Yazirin, Cepi Zainal Abidin Zakka Agustin, Rizkika Zamzami, Muhammad Rizal Akbar