Abiding Effects of Phenolic Antioxidants on Oxidative Behaviour of Fatty Acid Methyl Esters Derived from Waste Cooking Oil

Mosharof Hossaina, Shah Mohammad Asaduzzaman Sujan, Mohammad Shah Jamal, Md. Shahariar Chowdhury, Kuaanan Techato, Abu Naieum Muhammad Fakhruddina

Abstract


Fatty acid alkyl esters (FAMEs) derived from waste vegetable oils and non-edible oil sources are the most attractive alternative liquid biofuel in the energy field. Substitute methyl esters derived from waste cooking oil (WCO) have a lower induction period (3.12 h) and do not satisfy the Biodiesel EN 14214:2012 Standard (8 h). In this study, concentrations of 100, 250, 500, and 1000 ppm of four different types of phenolic antioxidants—butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), tert-butyl hydroquinone (TBHQ), and propyl gallate (PG)—were used to examine oxidative stability and improve fuel quality. PG (250 ppm) showed the most effective result of 18 h to 12.17 h of the induction period of 6 months of storage. Antioxidant effectiveness increased with regard the oxidative stability of waste cooking oil methyl ester in the following order: BHT

Keywords


Antioxidants; Storage behavior; Oxidative stability; Rancimat test; Waste cooking oil: Fatty acid methyl ester

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