The Production of Biodiesel from Waste Cooking Oil (Simultaneous Esterification and Transesterification Using Fe/Zeolite Catalysts from Waste Geothermal)

Abstract

The main aim of this research is to produce biodiesel with simultaneous esterification and transesterification using Fe/Zeolite catalyst. Fe/Zeolite catalyst synthesized using hydrothermal process from waste geothermal of PT. Geodipa Energy. This catalyst analyzed using XRD, SEM, and BET test. The variables of this research are concentration (0,01 gr/gr, 0,015 gr/gr, 0,02 gr/gr, 0,025 gr/gr, 0,03 gr/gr) and temperature (50°C, 55°C, 60°C, 65°C, 70°C). The result of biodiesel characterization using simultaneous esterification and transesterification is positive to increase yield following concentration of catalyst and temperature of the reaction. This biodiesel has been in accordance with Indonesian National Standard 7182-2015.

Effect of Temperature and Concentration of Zeolite Catalysts from Geothermal Solid Waste in Biodiesel Production from Used Cooking Oil by Esterification–Transesterification Process

“…The yield of methyl esters ranged between 93.5 and 95.1%. The use of Fe/zeolite catalyst from geothermal waste was carried out by Muna et al [40]. The highest biodiesel yield was obtained at 87.8%.…”