| SBA-1和Zr-SBA-1负载Pt-H3PW12O40催化剂的异构化性能 |
| |
| 引用本文： | 许元栋,齐彦兴,李树本.SBA-1和Zr-SBA-1负载Pt-H3PW12O40催化剂的异构化性能[J].石油学报(石油加工),2011,27(4):532-536. |
| |
| 作者姓名： | 许元栋 齐彦兴 李树本 |
| |
| 作者单位： | 1. 河南工业大学化学化工学院,河南郑州,450001
2. 中国科学院兰州化学物理研究所 羰基合成与选择氧化国家重点实验室,甘肃兰州,730000 |
| |
| 基金项目： | 河南工业大学博士基金项目(2009BS039)资助 |
| |
| 摘 要： | 以正硅酸乙酯为硅源、异丙基氧锆为锆源、十六烷基三乙基溴化铵(CTEABr)为模板剂，采用原位合成法在强酸性条件下合成出具有立方相结构的 SBA-1和Zr-SBA-1。采用共浸渍法制备出 SBA-1和 Zr-SBA-1负载 Pt-H3PW12O40催化剂2%Pt-30%HPA/SBA-1和2%Pt-30%HPA/Zr-SBA-1。利用 XRD、FT-IR 和 N2吸附-脱附手段对样品进行了表征。在微型固定床反应装置上考察了催化剂对正戊烷的异构化催化性能。并对3种不同结构的 SiO2载体(SBA-1、MCM-41、SiO2)负载 Pt-HPA 催化剂的异构化催化性能进行了对比。结果表明，2%Pt-30%HPA/SBA-1催化剂表现出最高的异构化催化活性，正戊烷异构化反应终点(120 min)时，正戊烷转化率和异戊烷选择性分别为65%和96%。当向 SBA-1骨架中掺杂 Zr 元素以后，2%Pt-30%HPA/Zr-SBA-1催化剂的异构化催化活性急剧下降，且 Zr 的掺杂量对催化剂活性没有显著影响。3种不同结构 SiO2载体的比表面积大小与其相应的负载 Pt-HPA 催化剂异构化催化活性高低顺序一致，载体比表面积大小是影响催化剂异构化催化活性高低的重要因素。
|
| 关 键 词： | SBA-1 载体 负载型催化剂 正戊烷 异构化 |
| 收稿时间： | 2010-08-09; |
The Isomerization Performance of SBA-1 and Zr-SBA-1 Supported Pt-H3PW12O40 Catalysts |
| |
| XU Yuandong,QI Yanxing,LI Shuben.The Isomerization Performance of SBA-1 and Zr-SBA-1 Supported Pt-H3PW12O40 Catalysts[J].Acta Petrolei Sinica (Petroleum Processing Section),2011,27(4):532-536. |
| |
| Authors: | XU Yuandong QI Yanxing LI Shuben |
| |
| Affiliation: | XU Yuandong~1,QI Yanxing~2,LI Shuben~2 (1.School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,China,2.State Key Laboratory for Oxo Synthesis and Selective Oxidation,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China) |
| |
| Abstract: | SBA-1 and Zr-SBA-1 mesoporous molecular sieves with cubic phase were synthesized in-situ under strong acid condition with tetraethyl orthosilicate as Si source,isopropyl zirconium oxide as Zr source and cetyltriethyl ammonium bromide as template.SBA-1 and Zr-SBA-1 supported Pt-H_3PW_(12)O_(40)(2%Pt-30%HPA/SBA-1 and 2%Pt-30%HPA/Zr-SBA-1) catalysts were prepared by co-impregnation method.XRD,FT-IR and N_2 adsorption-desorption were used to characterize the relevant samples.The catalytic isomerization activiti... |
| |
| Keywords: | SBA-1 support supported catalyst n-pentane isomerization |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《石油学报(石油加工)》浏览原始摘要信息 |
|
点击此处可从《石油学报(石油加工)》下载全文 |
