采用溶胶.凝胶法制备了CaO摩尔分数为10%-50%的CaO-ZrO2:系列纳米催化剂,将其用于催化红麻籽油制备生物柴油,通过CO2-TPD、XRD和TEM等测试技术对催化剂的碱性、结构和表面形貌进行表征.结果表明,CaO摩尔分数低于30%时,CaO与ZrO2:形成连续固溶体,催化剂具有良好的热稳定性能,粒径为10-20 nm.催化实验表明,当CaO摩尔分数为30%时,CaO-ZrO2:催化剂具有最好的催化活性,甲醇与红麻籽油的摩尔比为12:1、催化剂为油料质量比的2.5%、反应时间3 h时,最高转化率可达到93.2%.
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