The Influence Factors of Biodiesel Preparation from Waste Cooking Oil via Acid Catalyst

The process of biodiesel made from waste cooking oil via acid catalyst was studied in order to eliminate the waste cooking oil pollution and realize the health of waste oil use. The optimum conditions of biodiesel made from waste cooking oil, effect of reaction time, alcohol-oil ratio and catalyst dosage to the biodiesel conversion were explored by using orthogonal experiment design. The results showed that the conversion of biodiesel is 95.2% under the conditions of the reaction time is 2h, the alcohol-oil ratio is 6:1, the catalyst dosage is 1.5%, and the influence factors can be arranged as follows: reaction time > catalyst dosage > alcohol-oil ratio.