Removal of Free Fatty Acid in Soybean Oil by using KHSO4 Supported on Mordenite Zeolite
Keywords:
Free Fatty Acids, Esterification, KHSO4, H-MOR, BiodieselAbstract
In this study, the conversion of oleic acid (as a Free Fatty Acid), presented in soybean oil, was investigated by esterification reaction using KHSO4 supported on proton mordenite as a catalyst (KHSO4/H-MOR). The catalyst was characterized by XRD, FTIR, NH3-TPD and nitrogen adsorption. The reaction condition including catalyst types, catalyst amount, methanol to oil mole ratio, and reaction time were studied to obtain the optimum condition that gives maximum FFA conversion. The FFA conversion was determined using titration method. The study shows that KHSO4/H-MOR catalyst yielded the maximum FFA conversion (99%) for the esterification reaction at 70 °C with 4 h reaction time, methanol to oil mole ratio of 30:1 and 3 wt% catalyst loadingReferences
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