KOH/SBA-15负载型固体碱催化剂的合成、表征及催化性能  

Synthesis,characterization and catalytic performance of supported solid base catalyst of KOH/SBA-15

作　　者：朱明明[1] 万庆宇[1] 宋芊慧[1] 蔡天凤[1] 李会鹏[1] 赵华[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《化工科技》2013年第1期9-11,共3页Science & Technology in Chemical Industry

基　　金：辽宁省博士启动基金资助项目(20081104)

摘　　要：采用后合成法制备出固体碱催化剂KOH/SBA-15,利用X射线衍射法(XRD)、N2吸附-脱附(BET)、透射电镜(TEM)、化学吸附剂表面碱性测定(CO2-TPD)等对其进行表征。考察了其在大豆油酯交换反应制备生物柴油中的催化性能。结果表明,在相同反应条件下,与CaO/SBA-15和MgO/SBA-15相比,KOH/SBA-15在催化活性和孔扩散上都具有较大的优越性,催化制备生物柴油产率最高(83.56%)。SBA-15 was modified by introducing an active component by post-synthetic method for pre- paring a solid base catalyst KOH/SBA-15. Characterization was carried out by XRD, BET, TEM and CO2-TDP to understand the nature. KOH/SBA-15 catalytic performance on transesterification to pro- duce biodiesel from soybean oil was studied. In the same reaction conditions, compared to CaO/SBA-15 and MgO/SBA-15, （15%）KOH/SBA-15 showed the highest yield of biodiesel, due to its favorable su- periority on catalytic activity and pore diffusion.

关 键 词：KOH SBA-15 固体碱催化剂 表征 催化性能 

分 类 号：TQ426.94[化学工程]