Wahyudi, Safirah Janet Isabella and Sutanto, Hery and Legowo, Evita H. (2018) Study Of Solubility And Antioxidantactvities Of Biodesel Additives. Bachelor thesis, Swiss German University.

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Abstract

Biodiesel has been the most propitious substitute fuel for diesel engines. Although biodiesel is sensitive to oxidation during storage, synthetic antioxidants have been explored to overcome this drawback. However, these synthetic antioxidants that are commonly of phenolic compounds are insoluble in biodiesel due to their polarity. Thus, this study aims to obtain the most soluble antioxidant with effectiveness in reducing oxidation in biodiesel. Four phenolic antioxidants (Tert-butylhydroquinone, Pyrogallol, Gallic Acid and a pyrogallol derivative, New Additive) were subjected into UV-VIS spectrophotometer to obtain their solubility limit in Palm Oil biodiesel. Iodine Value, Acid Number and Viscosity of the additives in biodiesel were also measured for four weeks to study their antioxidant activities. The result showed that Tertbutylhydroquinone and New Additive are the most soluble antioxidant with solubility limit of 3000 ppm. Based on regression test, the best antioxidant in inhibiting oxidation in Iodine Value is B-TBHQ, the best in holding Acid Number jump is B-NA and the best in holding Viscosity increase is B-PY.

Item Type:	Thesis (Bachelor)
Uncontrolled Keywords:	Biofuel; Biodiesel; Solubility; Antioxidant Activity; Phenolic Compound
Subjects:	Q Science > QD Chemistry > QD543 Solubility T Technology > TJ Mechanical engineering and machinery > TJ807 Renewable energy sources T Technology > TP Chemical technology > TP315 Fuel T Technology > TP Chemical technology > TP360 Biomass
Divisions:	Faculty of Life Sciences and Technology > Department of Sustainable and Energy Environment
Depositing User:	Astuti Kusumaningrum
Date Deposited:	29 Sep 2020 02:43
Last Modified:	29 Sep 2020 02:43
URI:	http://repository.sgu.ac.id/id/eprint/870

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