| 不同类型碱对AlMCM-41分子筛合成及催化性能的影响 |
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| 引用本文： | 李工,阚秋斌,章慧杰,吴通好. 不同类型碱对AlMCM-41分子筛合成及催化性能的影响[J]. 石油化工, 2002, 31(2): 106-110 |
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| 作者姓名： | 李工 阚秋斌 章慧杰 吴通好 |
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| 作者单位： | 吉林大学,化学系,吉林,长春,130023 |
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| 基金项目： | 国家自然科学基金项目 ( 2 99730 0 1) |
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| 摘 要： | 用无机碱NaOH和有机碱TEAOH合成了不同硅铝比的AlMCM -4 1介孔分子筛 ,通过XRD、SEM、TEM、NH3-TPD、吡啶吸附和N2 等温吸附进行了表征。研究表明 ,使用TEAOH适合于合成低硅铝比的AlMCM -4 1分子筛 ,而使用NaOH合成高硅铝比的AlMCM -4 1分子筛 ,所得产物的有序程度较高。由TEAOH合成的AlMCM -4 1分子筛的比表面积、孔径、总酸量和B酸量均略大于由NaOH合成的试样 ,而且对异丙苯裂解和苯与 1-十二烯烷基化反应的活性前者也高于后者
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| 关 键 词： | AlMCM-41分子筛 合成 不同类型碱 表征 催化活性 |
| 文章编号： | 1000-8144(2002)02-0106-05 |
| 修稿时间： | 2001-04-11 |
Effect of Different Alkalis on the Synthesis and Catalysis Performance of AlMCM-41 Molecular Sieve |
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| LI Gong,KAN Qiu-bin,ZHANG Hui-jie,WU Tong-hao. Effect of Different Alkalis on the Synthesis and Catalysis Performance of AlMCM-41 Molecular Sieve[J]. Petrochemical Technology, 2002, 31(2): 106-110 |
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| Authors: | LI Gong KAN Qiu-bin ZHANG Hui-jie WU Tong-hao |
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| Abstract: | AlMCM-41 mesoporous molecular sieves with various Si/Al mol ratios were synthesized by using inorganic and organic alkalis,NaOH and tetracthyl ammonium bydroxide (TEAOH),and were characterized by XRD,SEM,TEM,TPDA,IR spectra of pyridine adsorption and N 2 isothermal adsorption.TEAOH is suitable for the synthesis of AlMCM-41 with lower Si/Al mol ratio,while NaOH is suitable for preparing ordered mesoporous AlMCM-41 with higher Si/Al mol ratio.In comparison with the samples prepared by NaOH,the mesoporous materials prepared by TEAOH have larger surface,larger pore diameter,more total acid content and Brnsted acidity,and also show higher catalytic acitivity for cracking of cumene and alkylation of benzene with 1-dodecene |
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| Keywords: | AlMCM-41 molecular sieve synthesis alkali characterization catalytic activity |
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