燃料化学学报2016，Vol.44Issue(8)：921-927,7.
CaO@SiO2纳米固体碱的制备、表征及其大豆油酯交换反应催化性能
Preparation of nano-solid based catalyst CaO@SiO2 for the transesterification of soybean oil to biodiesel
摘要
Abstract
The CaO@SiO2 alkaline catalyst was prepared by sol-gel method that chooses polystyrene as hard template and P123 as soft template to control the microstructure. Furthermore, the prepared catalyst was applied to the transesterification of soybean and methanol. Also, the nano-solid based catalyst was characterized by X-ray diffraction ( XRD ) , scanning electron microscopy ( SEM ) , transmission electron microscopy ( TEM ) , CO2-TPD and N2 absorption-desorption ( BET ) . The results show that the catalyst possesses an ordered morphology and core-shell structure. In addition, the effect of the ratio of SiO2/CaO (mass ratio), reaction temperatures, catalyst dosages and the ratio of oil/methanol ( mol ratio) on the yield of biodiesel was examined. Under the best reaction condition, the yield of biodiesel can reach 95. 6%.关键词
CaO/酯交换反应/生物柴油/纳米Key words
CaO/transesterification/biodiesel/nano-catalyst分类
化学化工引用本文复制引用
石敏,范明明,张萍波,蒋平平..CaO@SiO2纳米固体碱的制备、表征及其大豆油酯交换反应催化性能[J].燃料化学学报,2016,44(8):921-927,7.基金项目
The project was supported by the National Natural Science Foundation of China (21306063) and the Natural Science Foundation of Jiangsu Province (BK20130123).国家自然科学基金(21306063)和江苏省自然科学基金(BK20130123)资助 （21306063）
