Biodiesel Production from Waste Cooking Oil, using an Acid Modified Carbon Catalyst Derived from Cassava Peels

An investigation was carried out to study the feasibility of using synthesized acid-bearing carbonaceous catalyst (SO 3 H–C and PO 4 H 2 –C) derived from cassava peel for biodiesel production waste cooking oil (WCO). The activity tested an autoclave type reactor three different alcohol ratios (1 : 3, 1 5 7) at four temperatures (50–80 °C) h. Two types (i.e. methanol (CH OH) ethanol C were used understand efficiency in process. indicates that reaction high ratio generally produced yield compared other ratios. also increased with increasing temperature over all systems. carbon modified sulphuric acid showed highest ~90 %, which obtained 80 °C a 7 WCO alcohol. It observed better yields reactions where significant differences across both ratio. catalysts characterized Fourier Transform Infrared Spectroscopy, X-ray powder diffraction surface area pore volume analyses. is interest because it green, non-toxic waste.