THE STUDIED MANUFACTURE OF BIOCHAR FROM WASTE ORANGE PEEL TO APPLY AS A CATALYST FOR THE SYNTHESIS REACTION OF BIODIESEL PRODUCTION

Abstract

In this study, waste orange peel was calcined without oxygen at 450 ⁰C for 60 minutes to manufacture biochar, denoted as BCO sample. Then, BCO was impregnated with KOH and K₂CO₃ solutions of 2M concentration respectively to obtain a catalyst, denoted as BCO-K sample. The structural and compositional properties of BCO and BCO-K were determined, respectively, by analytical methods such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Electron microscopy scanning (SEM), and Bruner-Emmett-Teller (BET) adsorption. The analytical results have shown that BCO-K has higher catalytic activity than BCO. Therefore, BCO-K was used as a catalyst for the synthesis of biodiesel production. The measurement results of biodiesel production in this study are agreement with the commercial biodiesel standards ASTM-D6751 and mineral diesel TCVN 5689: 2005. Moreover, the calculation of the yield result of the reaction was obtained as 72.50 %. These results were presented that the studied catalyst from orange peel waste has a potential demonstration for the synthesis of biodiesel production to replace mineral diesel in the future industry.