甲醇脱氢制甲酸甲酯的负载型铜基催化剂的研究  

Study on Supported Copper Catalysts for the Dehydrogenation of Methanol to Methyl Formate

作　　者：刘昭铁[1] 陆大勋[1] 郭志英[1] 

机构地区：[1]中国科学院山西煤炭化学研究所,太原030001

出　　处：《石油化工》1991年第8期534-539,共6页Petrochemical Technology

基　　金：国家自然科学基金委员会资助课题;北京市中关村地区联合分析测试中心的资助

摘　　要：在常压、250℃条件下,考察了不同载体、添加剂以及制备方法对铜基催化剂上甲醇脱氢制甲酸甲酯的活性和选择性的影响。实验表明,用离子交换法制备的Cu/SiO_2催化剂具有较高的活性和选择性。XPS(X射线光电子能谱)表明,添加La、Zr、Ti能使催化剂表面相的Cu/Si或Cu/Al原子比增大,且增加催化活性。TPR(程序升温还原)表明,分散的CuO催化剂较结晶的CuO更易还原,其中Ti能明显地促进催化剂的还原。The effects of support, additive and method of preparation on the activity and selectivity of supported copper catalysts for the dehydrogenation of methanol to methyl formate have been investigated under atmospheric pressure and at 250℃. Copper supported on silica, prepared by ion-exchange, gives the highest activity and selectivity among the samples studied in this work. Additives La, Zr and Ti increase surface Cu/Si or Cu/Al atomic ratios, and enhance the activity of the catalysts. Temperature programmed reduction studies suggest that the more highly dispersed CuO is more easily reduced.

关 键 词：甲醇 脱氢 甲酸甲酯 催化剂 铜基 

分 类 号：TQ225.241[化学工程—有机化工]