摘要
制备Zr改性的固体超强酸S2O28--TiO2/Fe3O4作为脂肪酸甲酯的合成催化剂,通过单因素和正交试验考察了该催化剂催化合成脂肪酸甲酯的催化特性。试验表明:甲醇脂肪酸液料比3 mL/g,催化剂投入量12%,反应温度65℃,反应时间6 h的条件下,酯化率达到94%,产品得率90%,且催化剂回收再次利用效果较好。
Solid acid catalyst can be applied to the transterification as a substitute of homogeneous acid catalyst. Zr-modified solid super acid S2O8^2- - TiO2/Fe3O4 was prepared as the catalyst for FAME production and the catalysis activity was studied by single-factor and orthogonal experiments. The results show that the esterification rate and product yield can realize to 94% and 90 % respectively when the volume to mass ratio of methyl alcohol to acid is 3 mL/g, the reaction temperature is 65℃, the reaction time is 6 h, and the amount of catalyst is 12% of mass of fatty acid. The recovered catalyst can be reused effectively.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2008年第9期73-78,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
教育部科学技术研究重点项目(项目编号:107127)
安徽省科技攻关重点项目(项目编号:06013046A)
关键词
生物柴油
脂肪酸甲酯
工艺优化
固体催化剂
锆改性
Biodiesel, Fatty acid methyl ester, Technology optimization, Solid catalyst, Zr modification