甲苯-甲醇侧链烷基化合成苯乙烯的研究进展  

Progress of Synthesis of Styrene by Toluene—Methanol Side Chain Alkylation

作　　者：侯振江 赵鹬[1] 董鹏[1] 李宁[1] 李贵贤[1] 沈俭一[2] HOU Zhen-jiang;ZHAO Yu;DONG Peng;LI Ning;LI Gui-xian;SHEN Jian-yi(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China;School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210093,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]南京大学化学化工学院,江苏南京210093

出　　处：《分子催化》2021年第2期188-199,共12页Journal of Molecular Catalysis(China)

基　　金：国家自然科学基金(21763016)。

摘　　要：甲苯-甲醇侧链烷基化合成苯乙烯具有极高的工业应用前景和学术研究意义.我们介绍了甲苯与甲醇侧链烷基化反应制苯乙烯的课题背景,总结了改性X型分子筛、复合型分子筛、多孔碳和金属氧化物以及其它类型催化剂在甲苯-甲醇侧链烷基化反应中的应用状况,分析了其反应机理及甲醛深度分解的原因以及目前催化剂的不足,并提出了可能的改进方案.最后对该领域的今后研究重点进行了展望,为提升甲苯与甲醇侧链烷基化催化剂的活性、选择性及使用寿命等相关研究提供参考.The side chain alkylation of toluene with methanol for the synthesis of styrene has attracted much attention for both the academic and industrial interests. In this paper, the background and progress of the titled reaction have been reviewed. Four kinds of catalysts for the reaction have been summarized, including modified X-type molecular sieves, composite molecular sieves, porouscarbons and metal oxides, and other types of catalysts. The reaction mechanism was also analyzed, focusing particularly on the reason for the deep decomposition of formaldehyde and the drawbacks of currently studied catalysts, based on which solutions are reasonably envisaged. Finally, suggestions are proposed for the future researches in this field to develop the better and more stable catalysts for the high conversion of reactants with high selectivity to styrene.

关 键 词：甲苯 甲醇 苯乙烯 甲醛 侧链烷基化反应 烷基化催化剂 

分 类 号：O643.32[理学—物理化学]