Modification of Tert-butylhydroquinone with Palmitic Acid as a Soluble Antioxidant for Biodiesel Additive

Hery Sutanto, Amanda Jehan Pramastiani, Silvya Yusri, Akhmad Darmawan, Evita H. Legowo, Mohammad Nasikin

Research output: Contribution to journalConference articlepeer-review

Abstract

Biodiesel is a product resulted from the process of transesterification of vegetable oil or animal fat. Biodiesel is a renewable fuel and uses as alternative to fossil fuel diesel. However, one of the biodiesel drawbacks which is oxidation can affect the storage stability of the biodiesel. One way to solve this issue is by using antioxidant additives to improve the storage stability of biodiesel. Tert-Butylhydroquinone is a common synthetic phenolic antioxidant and has a proven superior antioxidant activity due to its polar characteristic. The difference in polarity between non-polar biodiesel and phenolic antioxidant makes their solubility becomes very low. In this study, modification of TBHQ with palmitic acid was done by using Friedel-Crafts acylation to increase its solubility in biodiesel. The resulting proposed product 1-(2-(tert-butyl)-3,6-dihydroxyphenyl)hexadecane-1-one, was confirmed using TLC, LC-MS/MS and 1H-NMR. The product showed solubility limit at concentration 2500 ppm and antioxidant activity with the IC50 value of 675.38 ppm, which both results are lower compared to TBHQ.

Original languageEnglish
Article number012003
JournalIOP Conference Series: Materials Science and Engineering
Volume742
Issue number1
DOIs
Publication statusPublished - 9 Mar 2020
Event2019 International Conference on Chemical Engineering, ICCE 2019 - Bandung, Indonesia
Duration: 28 Nov 201929 Nov 2019

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