PENGARUH JUMLAH KATALIS FLY ASH/Na2O PADA PEMBUATAN BIODIESEL(METIL ESTER) DARI MINYAK JELANTAH MENGGUNAKAN IRADIASI GELOMBANG MIKRO
Keywords:
biodiesel, fly ash/Na2O catalyst, used cooking oilAbstract
The increase in demand for fuel oil (BBM) causes a decrease in the availability of fuel, thus encouraging efforts to create alternative fuels made from renewable materials, such as biodiesel. Used cooking oil has the potential to be developed into biodiesel fuel because it contains triglyceride compounds in addition to free fatty acids. This study used a fly ash/Na2O catalyst with the microwave irradiation method, with the aim of knowing the effect of increasing the amount of catalyst on the biodiesel yield and biodiesel characteristics including: kinematic viscosity, water content, acid number, and density, and methyl ester content. Production of biodiesel (Methyl ester) begins with the manufacture of a fly ash catalyst impregnated using NaOH. Biodiesel (methyl ester) production is carried out by an esterification process, then followed by a transesterification process using a fly ash/Na2O catalyst with a catalyst amount of 2%, 4%, 6%, 8%, and 10% (%b) at 600 watts of power for 4 minute. The highest yield was obtained at the amount of catalyst 4% (%b) of 94.381% and the characteristics of the biodiesel (methyl ester) obtained were density of 0.853 g/ml, water content of 0.04174%, kinematic viscosity of 9.6433 cSt, and acid number of 0.726 mgKOH/ g, and methyl ester content of 74.5877%References
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Indonesian Society of Applied Science (ISAS)
