| 以微孔β沸石为硅铝源合成强酸性介孔分子筛 |
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| 引用本文： | 李玉平,潘瑞丽,李莎,张海荣,张鹏飞,窦涛.以微孔β沸石为硅铝源合成强酸性介孔分子筛[J].燃料化学学报,2011,39(12):950-955. |
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| 作者姓名： | 李玉平 潘瑞丽 李莎 张海荣 张鹏飞 窦涛 |
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| 作者单位： | 1.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2.Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, China;
3.Institute of Chemical and Biological Technology, Taiyuan University of Science and Technology, Taiyuan 030021, China |
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| 基金项目： | 国家自然科学基金(20973123) |
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| 摘 要： | 以微孔β沸石为硅铝源，通过碱处理和以十六烷基三甲基溴化铵为模板剂，合成了具有较强酸性的六方结构介孔分子筛材料B-MCM-41，并采用XRD、N2吸附脱附、FT-IR、27Al MAS NMR、HRTEM和水热处理等手段对其进行了结构表征，采用NH3-TPD对其进行了酸性表征。实验结果表明，B-MCM-41具有明显强于常规介孔分子筛的酸性，且在C+10混合芳烃加氢脱烷基化反应中表现出了良好的催化性能。这主要是由于碱溶液将β沸石降解为沸石结构单元，在表面活性剂作用下五元环次级结构单元被引入了介孔铝硅酸盐B-MCM-41的结构。
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| 关 键 词： | style="font-size: 9pt line-height: β150%">β style="font-size: 9pt line-height: 沸石" target="_blank">150%">沸石 介孔分子筛 合成 强酸性 脱烷基化 |
| 收稿时间： | 2010-12-17 |
Synthesis of mesoporous aluminosilicates with enhanced acidity from preformed beta zeolite |
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| LI Yu-ping,PAN Rui-li,LI Sha,ZHANG Hai-rong,ZHANG Peng-fei,DOU Tao.Synthesis of mesoporous aluminosilicates with enhanced acidity from preformed beta zeolite[J].Journal of Fuel Chemistry and Technology,2011,39(12):950-955. |
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| Authors: | LI Yu-ping PAN Rui-li LI Sha ZHANG Hai-rong ZHANG Peng-fei DOU Tao |
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| Institution: | LI Yu-ping1,PAN Rui-li2,3,LI Sha2,ZHANG Hai-rong2,ZHANG Peng-fei2,DOU Tao2 (1.College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China,2.Research Institute of Special Chemicals,3.Institute of Chemical and Biological Technology,Taiyuan University of Science and Technology,Taiyuan 030021,China) |
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| Abstract: | With alkali-treated beta zeolite as the sources of silicon and aluminum and cetyltrimethylammonium bromide(CTAB) as template,mesoporous aluminosilicates with hexagonal structure denoted as B-MCM-41 were synthesized.The structure and acidity of B-MCM-41 were characterized by XRD,N2 adsorption-desorption,FT-IR,27Al MAS NMR,HRTEM and NH3-TPD.Compared with conventional mesoporous aluminosilicates materials,B-MCM-41 synthesized in this way exhibits enhanced acidity and higher activity for catalytic dealkylation ... |
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| Keywords: | beta zeolite mesoporous molecular sieve synthesis enhanced acidity dealkylation |
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