| SO42-/TiO2-ZrO2复合氧化物固体酸催化剂的长叶烯芳构化催化性能 |
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| 引用本文： | 李 丽,张旦萍,范以宁. SO42-/TiO2-ZrO2复合氧化物固体酸催化剂的长叶烯芳构化催化性能[J]. 无机化学学报, 2011, 27(11): 2201-2204 |
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| 作者姓名： | 李 丽 张旦萍 范以宁 |
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| 作者单位： | 1. 南京大学化学化工学院,介观化学教育部重点实验室,江苏省纳米技术重点实验室,南京210093
2. 南京大学化学化工学院,介观化学教育部重点实验室,江苏省纳米技术重点实验室,南京210093;南京大学扬州化学化工研究院,扬州 211400 |
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| 摘 要： | 本工作用溶胶-凝胶法制备不同组成的SO42-/TiO2-ZrO2复合氧化物固体酸催化剂,用微型催化反应评价结合X-射线粉末衍射(XRD)、孔结构/BET表面积测试和NH3-程序升温脱附(NH3-TPD)等表征了SO42-/TiO2-ZrO2复合氧化物固体酸催化剂结构、表面酸性和长叶烯芳构化催化性能。复合氧化物固体酸SO42-/TiO2-ZrO2催化剂具有优良的长叶烯芳构化催化性能,并且其芳构化催化性能与催化剂组成和表面酸性密切相关。随催化剂中nZr/(nZr+nTi)增加,催化剂表面中等强度的酸中心量增加,芳构化产物选择性和收率明显增加,在nZr/(nZr+nTi)=0.5时达极大值。随nZr/(nZr+nTi)进一步增加,不仅催化剂表面酸中心量减少、原料转化率明显下降,而且催化剂酸强度增强,导致芳构化产物选择性和收率下降。催化长叶烯芳构化的二元复合氧化物固体酸SO42-/TiO2-ZrO2催化剂适宜的组成为nZr/(nZr+nTi)=0.5。
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| 关 键 词： | 固体酸 SO42-/TiO2-ZrO2催化剂 长叶烯 芳构化 1,1-二甲基-7-异丙基-1,2,3,4-四氢萘 |
Catalytic Properties of SO42-/TiO2-ZrO2 Composite Oxides Solid Acid Catalysts for Aromatization of Longifolene |
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| LI Li,ZHANG Dan-Ping and FAN Yi-Ning. Catalytic Properties of SO42-/TiO2-ZrO2 Composite Oxides Solid Acid Catalysts for Aromatization of Longifolene[J]. Chinese Journal of Inorganic Chemistry, 2011, 27(11): 2201-2204 |
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| Authors: | LI Li ZHANG Dan-Ping FAN Yi-Ning |
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| Affiliation: | School of Chemistry and Chemical Engineering, Nanjing University, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Jiangsu Provincial Key Laboratory of Nanotechnology, Nanjing 210093, China,School of Chemistry and Chemical Engineering, Nanjing University, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Jiangsu Provincial Key Laboratory of Nanotechnology, Nanjing 210093, China and School of Chemistry and Chemical Engineering, Nanjing University, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Jiangsu Provincial Key Laboratory of Nanotechnology, Nanjing 210093, China; Nanjing University-Yangzhou Institute of Chemis |
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| Abstract: | The SO42-/TiO2-ZrO2 composite oxides solid acid catalysts with different compositions were prepared by sol-gel method,and their structure and catalytic properties for aromatization of longifolene to 7-isopropyl-1,1-dimethyltetralin;were studied by using microreactor tests combined with X-ray diffraction(XRD),pore structure/BET surface area measurements and NH3 temperature-programmed desorption(NH3-TPD).It is shown that the SO42-/TiO2-ZrO2 composite oxides solid acid catalysts exhibit the unique catalytic pr... |
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| Keywords: | solid acid SO42-/TiO2-ZrO2 catalyst longifolene aromatization 7-isopropyl-1,1-dimethyltetralin |
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