Optimization research on biodiesel preparation from cotton oil

In this experiment,the biodieselwas prepared with cotton oiland methanolas raw materials by transesterification reaction,catalyzed by sodium hydroxide.By the single factor experiment and orthogonal test,factors influencing the yield of biodiesel were investigated,such as alcohol-oil ratio,catalyst amount,reaction temperature and reaction time.Suitable reaction conditions were obtained:molar ratio of methanol to oil was 6:1,amount of catalyst was 1.1%,reaction temperature was 55 ℃,and reaction time was 55 min.The yield could reach no less than 95.89%underthis condition.