Ce-β/SBA-15复合分子筛催化烷基化性能研究  

STUDY ON CATALYTIC ALKYLATION OF Ce-BETA/SBA-15 COMPOSITE MOLECULAR SIEVE

作　　者：马博文 赵帅[1] 刘亚亚 石薇薇[1] 沈健[1] Ma Bowen;Zhao Shuai;Liu Yaya;Shi Weiwei;Shen Jian(College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001, Liaoning, China)

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001

出　　处：《精细石油化工》2019年第2期10-14,共5页Speciality Petrochemicals

摘　　要：采用浸渍法对β分子筛进行金属Ce改性,通过直接合成法制备了Ce-β/SBA-15复合分子筛。采用XRD、NH_3-TPD、Py-FTIR、TG-DTA和N_2吸附-脱附等方法对分子筛结构进行表征,并将其用于催化苯酚叔丁醇烷基化反应,考察了Ce-β的加入量对催化性能的影响。结果表明,当Ce-β的加入量为40%时,复合分子筛的催化效果较好,苯酚转化率为45.6%,4-叔丁基苯酚选择性为59.6%。The impregnation method was used to modify beta molecular sieve with metal Ce,and Ce-beta/SBA-15 composite molecular sieve was prepared by direct synthesis.The structure of zeolites was characterized by XRD,NH3-TPD,Py-FTIR,TG-DTA and N2 adsorption desorption.It was used to catalyze the alkylation of phenol with tert butyl alcohol,and the influence of the amount of Ce-beta on the catalytic performance was investigated.The results show that when the amount of Ce-beta is 40%,the catalytic activity of the composite molecular sieve is the best,the conversion of phenol is45.6%,the selectivity of 4-tert butylphenol is 59.6%.

关 键 词：复合分子筛 制备 烷基化 选择性 

分 类 号：O643.36[理学—物理化学]