绿色MOFs基固体酸低温催化制备生物柴油  

Low-temperature Preparation of Biodiesel Catalyzed by a Green MOFs-Based Solid Acid

作　　者：李云聪 刘怡璇 蒋伊媛 李虎[1,2,3] 杨松 LI Yuncong;LIU Yixuan;JIANG Yiyuan;LI Hu;YANG Song(State Key Laboratory Breeding Base of Green Pesticide&Agricultural Bioengineering,Guizhou University,Guiyang 550025,China;State-Local Joint Laboratory for Comprehensive Utilization of Biomass,Guizhou University,Guiyang 550025,China;Center for Research&Development of Fine Chemicals,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学绿色农药与农业生物工程国家重点实验室培育基地和教育部重点实验室,贵州贵阳550025 [2]贵州大学生物质资源综合利用国家地方联合工程实验室,贵州贵阳550025 [3]贵州大学精细化工研究开发中心,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2023年第1期25-32,共8页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金资助项目(21908033);霍英东教育基金资助项目(161030);贵州省S&T资助项目(ZK[2022]011)。

摘　　要：生物柴油是重要的可再生能源,有希望代替化石燃料满足世界的能源需求。开发具有高Lewis酸性位点的多孔材料用于催化酯化反应制备生物柴油是当下的热门领域。以无溶剂法,通过生物质基2,5-呋喃二甲酸(FDCA)与氧氯化锆的简易组装,制备了介孔-金属有机杂化物FDCA-Zr,并通过油酸与甲醇进行酯化反应生成脂肪酸甲酯(FAME)的反应过程验证了其催化活性。采用XRD、FT-IR、BET、SEM、TEM、STEM-Mapping、热重分析、吡啶红外等方法对FDCA-Zr进行了详细的结构和性质分析。结果表明:FDCA-Zr具有良好的颗粒尺寸和优秀的催化性能,与传统的固体酸催化剂以及液体酸催化剂相比,在长烷基链脂肪酸的酯化反应中表现出相当或优越的催化效果,FAME的收率可达到98%。此外,FDCA-Zr在连续循环使用过程中结构稳定,在6次循环后FAME的收率仍保持在90%,重复利用性良好。Biodiesel is an important renewable energy to replace fossil fuels to meet the world’s energy needs.The preparation of porous materials with high Lewis acid-base sites for catalytic esterification to produce biodiesel is a hot topic at present.In this work,mesoporous metal-organic hybrid FDCA-Zr was prepared by the simple assembly of biomass-based 2,5-furandicarboxylic acid(FDCA)and zirconium oxychloride using a solvent-free method,and its catalytic activity was verified by the esterification of oleic acid with methanol to produce fatty acid methyl esters(FAMEs).The structure and properties of FDCA-Zr were analyzed in detail by XRD,FT-IR,BET,SEM,TEM,STEM-Mapping,TG,and pyridine infrared.The results showed that the material FDCA-Zr had good particle size and excellent catalytic performance.Compared with the traditional solid acid catalyst and liquid acid catalyst,it showed superior or equivalent catalytic performance in the esterification of long alkyl chain fatty acids,with the FAME yields up to 98%.In addition,FDCA-Zr was structurally stable during continuous cycling,and the yield of FAME remained at 90%after 6 cycles,presenting a good reusability.

关 键 词：生物柴油 酯化反应 低温反应 研磨法 生物质材料 

分 类 号：O643.32[理学—物理化学]