SPU-W分子筛催化异丙醇制备异丙醚参数优化的研究  

Study on Optimization of Parameters for Preparing Isopropyl Ether from Isopropanol Catalyzed by SPU-W Molecular Sieve

作　　者：杨晶铃 燕溪溪 李志豪 张宁 李雪玲 刘震 汪宏星 应思斌 王利军[1] YANG Jingling;YAN Xixi;LI Zhihao;ZHANG Ning;LI Xueling;LIU Zhen;WANG Hongxing;YING Sibin;WANG Lijun(School of Environmental and Materials Engineering,Shanghai Polytechnic University,Shanghai 201209,China;Zhejiang Xinhua Chemical Co.,Ltd.,Hangzhou 311607,Zhejiang,China)

机构地区：[1]上海第二工业大学环境与材料工程学院,上海201209 [2]浙江新化化工股份有限公司,浙江杭州311607

出　　处：《上海第二工业大学学报》2021年第2期92-97,共6页Journal of Shanghai Polytechnic University

摘　　要：以SPU-W分子筛为催化剂,研究了异丙醇脱水反应制备异丙醚的工艺条件,考察了硅铝比、反应温度以及分子筛用量对SPU-W分子筛催化异丙醇脱水反应的影响,并利用扫描电子显微镜(SEM)对催化剂进行表征。研究结果表明:硅铝比为25的SPU-W分子筛的催化效果最好,SPU-W分子筛催化异丙醇制备异丙醚的最佳反应温度和最佳用量分别为180℃、0.5 g,在此条件下,异丙醇的转化率为42.72%,异丙醚的选择性为87.08%。The preparation of isopropyl ether by dehydration of isopropanol with SPU-W molecular sieve as catalyst was studied.The effects of silicon to aluminum ratio,reaction temperature and amount of molecular sieve on the dehydration of isopropanol catalyzed by SPU-W molecular sieve were investigated,and the catalyst was characterized by scanning electron microscope(SEM).The results show that SPU-W molecular sieve with the silicon to aluminum ratio of 25 has the best catalytic effect.The optimum reaction temperature and dosage of SPU-W molecular sieve for isopropanol to isopropyl ether are 180℃and 0.5 g,respectively.Under these conditions,the conversion of isopropanol is 42.72%,and the selectivity of isopropyl ether is 87.08%.

关 键 词：异丙醚 分子筛 催化 异丙醇 硅铝比 

分 类 号：TQ426.94[化学工程]