玉米芯碳基固体酸催化丙烯酸酯化性能研究  

Study on the Performance of Acrylic Esterification Catalyzed by Corncob Carbon-based Solid Acids

作　　者：李安 左依伦 向涛 吴芬 朱政斌[1] LI An;ZUO Yiun;XIANG Tao;WU Fen;ZHU Zhengbin(School of Chemistry and Chemical Engineering,Hunan Institute of Science and Technology,Yueyang 414006,China)

机构地区：[1]湖南理工学院化学化工学院,湖南岳阳414006

出　　处：《湖南理工学院学报（自然科学版）》2024年第2期14-18,共5页Journal of Hunan Institute of Science and Technology(Natural Sciences)

基　　金：湖南省自然科学基金面上项目(2023JJ30272);湖南省大学生创新创业训练计划项目(20223752)。

摘　　要：以玉米芯生物质为原料,通过碳化-磺化法制备玉米芯碳基固体酸催化剂,并对催化剂进行结构表征和丙烯酸酯化性能评价.结果表明,玉米芯生物质材料通过碳化-磺化后成功链接上-SO_(3)H,保留了原本的生物质前驱体结构且拥有较为丰富的孔隙结构,同时具有较好的催化酯化性能.在最佳反应条件下,催化丙烯酸和甲醇酯化反应,丙烯酸的转化率可达到93.6%;催化剂重复使用三次后依旧保持较高的催化酯化性能.In this paper,corncob biomass is used as raw material to prepare corncob carbon-based solid acid catalyst via carbonization-sulfonation method.The structure of catalyst is characterized and the catalytic performance for acrylate esterification is evaluated.The results show that corncob biomass material is successfully linked-SO_(3)H group after carbonization-sulfonation,which retains original biomass precursor structure and possesses rich porous structure and also has excellent catalytic esterification performance.Under the optimal reaction conditions,the catalytic esterification of acrylic acid and methanol,the conversion of acrylic acid can reach 93.6%.Moreover,this catalyst still maintains high catalytic esterification performance after being reused three times.

关 键 词：生物质 玉米芯 碳基固体酸 丙烯酸 酯化 

分 类 号：O613[理学—无机化学]