Conversion of Jatropha curcas oil to biodiesel using heterogeneous catalyst via microwave irradiation method

Abdul Halim, Amiera Husna (2019) Conversion of Jatropha curcas oil to biodiesel using heterogeneous catalyst via microwave irradiation method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

An experimental investigation was conducted to produce biodiesel oil via transesterification process with the help of microwave irradiation method by utilizing non edible Jatropha Curcas oil (JCO) as main feed stock. Acid esterification by using sulphuric acid (H2SO4), is performed in order to reduce the high free fatty acid level of JCO and followed by transesterification process by using batch microwave irradiation technique. Calcium oxide (CaO) derived from cockle shells (anadara granosa) were selected as solid heterogeneous catalysts with the help of methanol (MeOH) as main alcohol in the transesterification process. The process successfully reduced the acid value of JCO from 30 mgKOH/g to 0.375 mgKOH/g. The optimum yield of fatty acid methyl ester (FAME) was reached up to 90.5% under optimal conditions of 9:1 methanol to oil molar ratio, catalyst concentration of 7 wt%, 7 minutes of reaction time, and 350 Watt microwave power output. All fuel properties were analysed according to the ASTM D6751 standard.

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