Biodiesel Production by Using CaO Catalyst and Ultrasonic Assisted

[摘要] Biodiesel is an alternative energy and sustainable products. Biodiesel can be produced from vegetable oil by using homogenous and heterogenous catalyst. In this research, biodiesel was produced by using CaO catalyst from limestone and assisted by ultrasonic wave. CaO catalyst was used 1- 4.4% of oil weight. Ultrasonic wave was generated by using ultrasonic cleaner at 28 and 42 kHz of frequency. Cooking oil was preparated by esterification process by using sulphuric acid as catalyst until amount of free fatty acid (FFA) is under 0.5%. The results shown yield of methyl ester obtained highest 89.98% on the reaction carried on mole ratio methanol to oil, 9: 1 and frequency of 40 kHz. Increasing frequency of ultrasonic wave cause increasing of yield of biodiesel.

[发布机构] Laboratory of Advanced Material, Center of Research and Service, Diponegoro University, Indonesia^1;Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang; 50275, Indonesia^2

[效力级别] 物理学

[关键词] Alternative energy;Biodiesel production;Cooking oil;Free fatty acid;Heterogenous catalysts;Methyl esters;Sustainable products;Ultrasonic cleaners