Sodium Methoxide/Zeolite-Supported Catalyst for Transesterification of Soybean Waste Cooking Oil for Biodiesel Production

This study aims to prepare a supported catalyst based on zeolite Y doped with NaOMe (sodium methoxide) for the transesterification of waste cooking oil (WCO). The catalytic screening data showed that NaOMe/zeolite is prominent WCO prepared by solvent-free, ball-milling process. We initially tested 5–20% sodium methoxide loading onto and found 20% optimum reaction. reaction required comparatively lower methanol-to-oil mole ratio 16:1 temperature as 60 °C. ball-milled was characterized BET surface area analysis, FE-SEM, TEM, FT–IR, XRD. analysis revealed substantially decreased in catalyst. process dropped crystallinity Y, which can be seen from XRD FE-SEM images both Finally, product fully 1H-NMR viscosity biodiesel, glycerol, WCO. chemical shifts biodiesel glycerol are accordingly. also FT–IR characterization It noteworthy very high mass 250 g oil/g obtained when converting indicating activity aforementioned