磷改性SSZ-13分子筛在乙醇制丙烯反应中的应用  

Application of Phosphorus Modified SSZ-13 Zeolite in Ethanol to Propylene Reaction

作　　者：薛彦峰 郝晓栋 田鹏 贾彦 焦寓红 郭佳美 董蕾 范旸杰 Xue Yanfeng;Hao Xiaodong;Tian Peng;Jia Yan;Jiao Yuhong;Guo Jiamei;Dong Lei;Fan Yangjie(Breeding Base for Shanxi Key Laboratory of Biomass-based Green Methanol Conversion and Hydrogen Utilization,Department of Chemistry and Chemical Engineering,Taiyuan Institute of Technology,Taiyuan Shanxi 030008,China;School of Chemistry and Chemical Engineering,North University of China,Taiyuan Shanxi 030051,China)

机构地区：[1]生物质绿色甲醇转化及氢能利用厅市共建山西省重点实验室培育基地,太原工业学院化学与化工系,山西太原030008 [2]中北大学化学与化工学院,山西太原030051

出　　处：《山西化工》2024年第5期1-4,共4页Shanxi Chemical Industry

基　　金：国家自然科学基金(22072105);国家级大学生创新创业训练计划项目(202314101027);山西省大学生创新创业训练计划项目(S202314101148);太原工业学院引进人才科研资助项目(2022KJ062)。

摘　　要：采用水热合成法制备了SSZ-13分子筛,采用浸渍法对其进行磷改性。采用XRD、N2物理吸附、NH3-TPD等方法对分子筛进行了表征,使用固定床反应器对磷改性SSZ-13的乙醇制丙烯催化性能进行了考察。结果显示,磷引入后导致分子筛结晶度、比表面积、孔体积、酸量和酸强度均出现一定程度的下降,但促进了其乙醇制丙烯催化性能,经磷改性后,其丙烯选择性由83.7%增加至86.9%。In this study,SSZ-13 zeolite was synthesized by hydrothermal method,and then it was modified with phosphorus by impregnation method.The zeolite samples were characterized by XRD,N2physical adsorption and NH3-TPD methods.The catalytic performance of phosphorus modified SSZ-13 on ethanol to propylene(ETP) was investigated with a fixed bed reactor.The results showed that introduction of phosphorus led to a certain degree of decrease in the crystallinity,specific surface area,pore volume,acid amount,and acid strength of the SSZ-13 sample,but improved its catalytic performance for ETP process.After phosphorus modification,its propylene selectivity increased from 83.7% to 86.9%.

关 键 词：乙醇制丙烯 SSZ-13分子筛 磷改性 催化 

分 类 号：TQ221.2111[化学工程—有机化工]