双核离子液体固载Zr-SBA-15的制备及其催化大豆油合成生物柴油  

SYNTHESIS OF DUAL-CORE IONIC LIQUIDS MODIFIED Zr-SBA-15 AND CATAL PREPARATION OF BIODIESEL

作　　者：刘宁 王亮 翟雨婷 尹慧 申丹凤 唐新德[1] Liu Ning;Wang Liang;Zhai Yuting;Yin Hui;Shen Danfeng;Tang Xinde(School of Chemistry and Environmental Engineering,Hunan Institute of Technology,Hengyang 421002,China;Yongzhou Municipal Ecology and Environment Bureau,Yongzhou 425002,China)

机构地区：[1]湖南工学院化学与环境工程学院,衡阳421002 [2]永州市生态环境局,永州425002

出　　处：《太阳能学报》2025年第1期215-221,共7页Acta Energiae Solaris Sinica

基　　金：湖南省自然科学基金青年项目(2020JJ5117);湖南省教育厅科学研究重点项目(22A0628);湖南省大学生创新创业训练计划项目(S202311528071,S202311528069)。

摘　　要：利用硅烷偶联剂将双核离子液体嫁接到Zr-SBA-15载体表面,制得双核离子液体改性Zr-SBA-15有机-无机杂化体(ILs-ZrS)催化剂。通过傅里叶红外光谱分析(FT-IR)、热重分析(TGA)、小角度X射线衍射分析(XRD)、N_2物理吸附BET、内部组织形貌观察(TEM)、表面形貌分析(SEM)等表征方法考察所制备的固体碱性离子液体催化剂的性能。结果表明:当离子液体化合物[CTBM]OH与载体Zr-SBA-15加入量之比为2.0 mmol∶1.0 g,所制备的催化剂ILs-ZrS-2显示出相对优异的催化活性。当ILs-ZrS-2添加量为5%、反应时间为8 h、反应温度为65℃、醇油物质的量之比为20时,生物柴油收率达94.3%。在其重复使用4次后,催化剂仍能保持良好的催化活性。The ionic liquid was grafted onto the surface of the Zr-SBA-15 support using a silane coupling agent,and a strong basic dual-core ionic liquid ILs-ZrS solid base catalyst was successfully prepared.The physicochemical properties of the prepared catalyst with dual-nuclear solid basic ionic liquid was analyzed by FT-IR,small angle XRD,TEM,SEM,BET,TG and other analytical methods.The results show that when the ratio of the ionic liquid compound[CTBM]OH to the carrier Zr-SBA-15 is 2.0 mmol∶1.0 g,the prepared catalyst ILs-ZrS-2 demonstrates excellent catalytic performances in transesterification of soybean oil to biodiesel.The biodiesel yield of 94.3%is obtained when the molar ratio of alcohol to oil is 20:1,reaction temperature at 65°C,reaction time 8 h and the catalyst dosage of 5%.The binuclear solid basic ionic liquid catalyst ILs-ZrS-2 can still maintain a good catalytic activity,after repeatedly used four times under good reaction conditions.

关 键 词：生物柴油 Zr-SBA-15 介孔材料 酯交换 有机-无机杂化体 碱性离子液体 

分 类 号：TK6[动力工程及工程热物理—生物能]