Yusri, Silvya and Andrews, Valerie and Sutanto, Hery and Legowo, Evita Herawati (2023) Biodiesel Additive Performance from Tertiary Butylhydroquinone and Surfactant Glycerol Monostearate. International Journal of Renewable Energy Research, 13 (2). ISSN 1309-0127

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Abstract

As the world moves towards cleaner energy sources to replace the conventional use of fossil fuels, biodiesel has emerged as a promising alternative for the transport sector. Biodiesel is produced from vegetable oils through the process of transesterification, however this process presents some problems due to unsaturation in the ester chains, which makes them oxidatively unstable. To overcome this issue, the addition of phenolic antioxidants and surfactants is often necessary. Previous research has demonstrated that tertiary butylhydroquinone (TBHQ) and glycerol monostearate (GMS) were effective as antioxidant additives in biodiesel by improving its oxidative stability. However, the complete parameter of its performance has not yet been thoroughly evaluated. This research aims to analyze the performance of TBHQ and GMS mixture based on four parameters – acid number, iodine value, kinematic viscosity at 40oC, and induction period – in both pure biodiesel (B100) and commercial blended biodiesel (B30) made from crude palm oil (CPO). These parameters were assessed according to the Indonesian standards. Within the span of four weeks results shows that addition of additives TBHQ and GMS significantly improved the oxidative stability of biodiesel in terms of acid number, iodine value, and induction period. Although the viscosity increased with the addition of TBHQ, GMS was able to inhibit this rise. Nevertheless, all the results complied under Indonesian standards for biodiesel.

Item Type:	Article
Depositing User:	Faisal Ifzaldi
Date Deposited:	08 Jan 2024 08:58
Last Modified:	08 Jan 2024 08:58
URI:	http://repository.sgu.ac.id/id/eprint/2609

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