Waste Cooking Oil Utilisation as Bio-plasticiser through
\nEpoxidation using Inorganic Acids as Homogeneous
\nCatalysts

Abstract

This paper exposed the preparation of epoxidised waste cooking oil with sulfuric acid, nitric acid, and
\nhydrochloric acid in order to utilise waste cooking oil economically efficient due to highly unsaturated
\ntriglycerides. These triglycerides act as potential raw material due to double bond content. The double bond
\ncontent can be converted as bio-plasticiser. The paper aimed to investigate optimum conversion with different
\ninorganic acids based on oxirane conversion and iodine value at different time. Epoxidation reaction was
\ncarried out in the conventional acetic acid-hydrogen peroxide process.
\nThe result showed that sulfuric acid can obtain higher conversion than that of other acid catalysts. It resulted
\nwith 20 % of oxirane conversion for 5 h.