| Pt/脱铝Y沸石催化剂上正庚烷加氢异构化 |
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| 引用本文： | 王军,林臻,张玉辉,徐智中,乔旭.Pt/脱铝Y沸石催化剂上正庚烷加氢异构化[J].石油化工,2001,30(7):509-512. |
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| 作者姓名： | 王军 林臻 张玉辉 徐智中 乔旭 |
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| 作者单位： | 1. 南京化工大学化工学院,
2. 复旦大学化学系, |
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| 基金项目： | 江苏省青年科技基金(BQ2000005)与江苏省化学工程与技术重点实验室开放经费资助课题. |
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| 摘 要： | 考察了三种脱铝Y沸石及HZSM -5沸石负载的Pt双功能催化剂上正庚烷加氢异构化的反应性能 ,用IR、2 9Si(2 7Al)MASNMR和低温N2 吸附表征了催化剂的物化性质 ,揭示了催化剂中Pt含量、载体酸性和孔结构对催化剂反应性能的影响。结果表明 ,一种利用水蒸气和酸联合脱铝改性的Y沸石上负载 0 4% (质量分数 )Pt的催化剂使异构化产物选择性达 95 %以上 ,同时保持近 2 0 %的正庚烷转化率。
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| 关 键 词： | 脱铝 Y沸石 双功能催化剂 正庚烷加氢异构化 |
| 文章编号： | 1000-8144(2001)07-0509-04 |
| 修稿时间： | 2000年9月6日 |
Hydroisomerization of n - Heptane over Platinum Catalysts Supported on Dealuminated Y Zeolites |
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| WTBXWANG Jun ,LIN Zhen ,ZHANG Yu-hui ,XU Zhi-zhong ,QIAO Xu ,WTBZ.Hydroisomerization of n - Heptane over Platinum Catalysts Supported on Dealuminated Y Zeolites[J].Petrochemical Technology,2001,30(7):509-512. |
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| Authors: | WTBX]WANG Jun LIN Zhen ZHANG Yu-hui XU Zhi-zhong QIAO Xu [WTBZ] |
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| Affiliation: | WT5BX]WANG Jun 1,LIN Zhen 1,ZHANG Yu-hui 1,XU Zhi-zhong 2,QIAO Xu 1,[WT6BZ] |
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| Abstract: | Performances of platinum catalysts supported on dealuminated Y or HZSM-5 zeolite for the hydro- isomerization of n-heptane are investigated.The physicochemical properties of employed catalysts are measured by IR, 29 Si( 27 Al)MAS NMR and N 2 adsorption techniques.The effect of the platinum content,acidity and pore structure of catalysts on catalytic activities is discussed in detail.It is found that a high isomerization selectivity of over 95% with an overall conversion of nearly 20% can be achieved with a catalyst with a platinum content of 0 4% supported on dealuminated Y zeolite treated by steam and acid. |
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| Keywords: | dealumination Y zeolite bifunctional catalyst n-heptane hydroisomerization |
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