Pramastiani, Amanda Jehan and Sutanto, Hery and Darmawan, Akhmad (2018) Modification Of Tert-Butylhydroquinone With Palmitic Acid As A Soluble Antioxidant For Biodiesel Additive. Bachelor thesis, Swiss German University.

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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 problem 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 tert-Butylhydroquinone with palmitic acid was done by using FriedelCrafts 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 characterized by using 1 H-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 tert-Butylhydroquinone.

Item Type:	Thesis (Bachelor)
Uncontrolled Keywords:	Biodiesel; Tert-Butylhydroquinone; Antioxidant; Friedel-Crafts Acylation Solubility
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD195.42 Acid-forming emissions T Technology > TJ Mechanical engineering and machinery > TJ807 Renewable energy sources
Divisions:	Faculty of Life Sciences and Technology > Department of Sustainable and Energy Environment
Depositing User:	Astuti Kusumaningrum
Date Deposited:	25 Sep 2020 02:53
Last Modified:	25 Sep 2020 02:53
URI:	http://repository.sgu.ac.id/id/eprint/859

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