| Issue |
E3S Web Conf.
Volume 650, 2025
The 10th International Conference on Energy, Environment, and Information Systems (ICENIS 2025)
|
|
|---|---|---|
| Article Number | 01001 | |
| Number of page(s) | 9 | |
| Section | Energy | |
| DOI | https://doi.org/10.1051/e3sconf/202565001001 | |
| Published online | 10 October 2025 | |
Castor Oil Derived Insulating Fluid Catalyzed with SnCl2/Zeolite Y
1 Department of Chemical Engineering, Diponegoro University, Semarang, Indonesia 50275
2 Advanced Materials Laboratory, Diponegoro University, Semarang, Indonesia 50275
3 Transmission and Distribution Department, PLN Research Institute, Jakarta, Indonesia 12760
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
This study investigates the synthesis of ester oil from castor oil via a two-step esterification process using SnCl2/Zeolite Y as a catalyst. Catalyst characterization through SEM-EDX and XRD confirmed the retention of Zeolite Y's porous structure and the successful incorporation of SnCl2, enhancing catalytic performance. The SnCl2/Zeolite Y catalyst facilitated esterification, achieving a significant reduction in viscosity from 163.912 cSt to 14.2696 cSt for DEG-based esters and from 167.373 cSt to 16.4987 cSt for TMP-based esters. Density varied from 0.9350 g/cm³ to 1.016 g/cm³, where diethylene glycol (DEG) produced ester oils with lower densities than trimethylolpropane (TMP). TMP-based esters exhibited higher viscosity and stability, while DEG-based esters offered improved fluidity. The synthesized ester oils maintained zero conductivity, confirming their potential as biodegradable insulating fluids for electrical applications.
© The Authors, published by EDP Sciences, 2025
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