作者: Nalan Özbay , Nuray Oktar , N. Alper Tapan
DOI: 10.1016/J.FUEL.2007.12.010
关键词: Fatty acid level 、 Saponification 、 BET theory 、 Organic chemistry 、 Catalysis 、 Biodiesel 、 Chemistry 、 Fatty acid 、 Transesterification 、 Ion-exchange resin
摘要: Abstract Although WCO plays a crucial role for the economical production of biodiesel, free fatty acid (FFA) level in nature cause saponification problems during transesterification. Acidic ion-exchange resins can be used to decrease level. In this study, activities (Amberlyst-15 (A-15), Amberlyst-35 (A-35), Amberlyst-16 (A-16) and Dowex HCR-W2) direct FFA esterification were examined temperature range 50–60 °C effect catalyst amount (1–2 wt%) on conversion was also analyzed. increased with increasing reaction amount. Order catalytic found as A-15 > A-35 > A-16 > Dowex HCR-W2. This related size average pore diameters magnitude BET surface area.