无黏结剂β沸石的制备及其苯加氢烷基化性能  

Preparation of Binderless β Zeolite and Its Performance in the Hydroalkylation of Benzene

作　　者：王德举[1] 郭友娣[1] 韩亚梅[1] 杨为民[1] 

机构地区：[1]中国石油化工股份有限公司上海石油化工研究院绿色化工与工业催化国家重点实验室,上海201208

出　　处：《化学世界》2016年第11期688-692,共5页Chemical World

基　　金：国家重点研发计划(课题编号:2016YFB0701105)

摘　　要：将硅铝原料与β沸石晶种混合成型,对成型前驱体进行水热转化制备无黏结剂β沸石,考察了模板剂质量和用量、晶化温度和晶化时间对制备材料的影响。结果表明优化条件下制备的无黏结剂β沸石产物晶体尺寸小,具有丰富的孔结构、较大的比表面以及较高的机械强度。基于无黏结剂β沸石负载金属钯(Pd)制备的加氢烷基化催化剂具有良好的催化性能,质量分数为0.3%Pd/Hβ催化剂上苯加氢烷基化反应中环己基苯的收率可达27.8%。Binderless β zeolite was prepared from preformed precursor of aluminosilicate embedded with β zeolite crystal seeds by hydrothermal method.The effects of the concentration and amount of template,crystallization temperature and time on the product were investigated.The results showed that the binderless β zeolite obtained under optimized conditions had small crystal size,enriched multi-porosity,high surface area and excellent mechanical stability.The Pd-supported binderless β zeolite catalyst exhibited superior catalytic performance in hydroalkylation of benzene.The yield of cyclohexylbenzene on 0.3% Pd/H β catalyst reached 27.8%.

关 键 词：无黏结剂β沸石 模板剂 加氢烷基化 催化剂 环己基苯 

分 类 号：O643.36[理学—物理化学]