Effect of KF modification to kaolinite catalytic activity in microwave-assisted biodiesel conversion

Abstract

PREPARATION catalyst applicationof reusable on biodieselcatalyst conversionbased on hasKF-modified been investigated.kaolinite Materialsclay for preparationreusable were carried out by simple mixing and solid reaction between KF and kaolinite at various KF loading. The effect of KF content loaded the surface structure and surface basicity have been studied. Characterization of the materials was investigated based on scanning electrone microscopy-energy dispersive-x ray spectroscopy (SEM-EDX) SEM, x-ray diffraction (XRD) and gas sorption analysis. Increasing the reusability and the effectivity of catalysts utilization was studied by comparing reflux method and microwave (MW)-assisted reaction of biodiesel production from Jatropha oil. Results showed that increasing solid basicity is the character plays important role in increasing catalytic activity in biodiesel conversion. By comparing the reaction method, it is found that similar biodiesel yield was obtained with shorter time, higher turnover frequency (TOF) and better reusability over MW assisted-method. Refer to yield and TOF of compared reactions, KF content of 25% for kaolinite modification is the optimum concentration to produce biodiesel.