| SAPO-11中硅含量对长链烷烃加氢异构化反应的影响 |
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| 引用本文： | 邓鹏,聂聪,李全芝.SAPO-11中硅含量对长链烷烃加氢异构化反应的影响[J].复旦学报(自然科学版),2001,40(4):387-391. |
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| 作者姓名： | 邓鹏 聂聪 李全芝 |
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| 作者单位： | 复旦大学化学系, |
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| 基金项目： | 国家自然科学基金资助项目 (2 97330 70 ) |
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| 摘 要： | 合成了3个不同硅含量的SAPO－11分子筛,通过29Si MAS NMR,Py-IR,扫描电镜,N2吸附等方法对其进行表征,并用脉冲微反考察了载钯后在正十二烷加氢异构化反应中的催化性能,将表征结果与异构化性能关联,提出了与“孔口模型”不同的观点,指出SAPO－11中的较强B酸对加氢异构化反应起主要作用,为提高和改进Pd/SAPO-11催化剂的性能提供了科学依据。
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| 关 键 词： | SAPO－11 核磁共振 红外光谱 加氢异构化 长链烷烃 催化性能 硅含量 分子筛 |
| 文章编号： | 0427-7104(2001)04-0387-05 |
Effect of the Silicon Content of SAPO-11 on the Hydroisomerization of n-dodecane |
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| DENG Peng,NIE Cong,LI Quan zhi.Effect of the Silicon Content of SAPO-11 on the Hydroisomerization of n-dodecane[J].Journal of Fudan University(Natural Science),2001,40(4):387-391. |
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| Authors: | DENG Peng NIE Cong LI Quan zhi |
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| Abstract: | Three moleculor sieves of SAPO 11 with different silicon content have been synthesized. The solids were characterized by using 29 Si MAS NMR, Py IR, SEM, N 2 adsorption, and after being loaded with Pd, were inspected for the catalysis property in n dodecane hydroisomerization with pulse micro reactor. On comparing property, a point view is proposed that is different from the method of "pore mouth", it says that the stronger Bronsted acid sites of SAPO 11 is responsible for the hydroisomerization. It offers a scientific foundation for raising and improving the property of catalyst Pd/SAPO 11. |
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| Keywords: | SAPO 11 MAS NMR IR spectra hydroisomerization |
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