| F-Nb摩尔比对F-Nb/HZSM-5催化剂催化乙醇脱水性能的影响 |
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| 引用本文： | 李宁,陆翠云,许冬生,胡燚,韩毓旺. F-Nb摩尔比对F-Nb/HZSM-5催化剂催化乙醇脱水性能的影响[J]. 燃料化学学报, 2011, 39(11): 850-855 |
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| 作者姓名： | 李宁 陆翠云 许冬生 胡燚 韩毓旺 |
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| 作者单位： | 1.College of Science, Nanjing University of Technology, Nanjing 210009, China;2.State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| 基金项目： | 国家高技术研究发展计划(863计划,2006AA020101); 国家科技支撑计划重点资助项目(2006BAE02B04) |
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| 摘 要： | 利用BET、NH3-TPD、FT-IR、MAS-NMR和SEM等方法研究了经不同F/Nb负载的F-Nb/HZSM-5催化剂的结构和表面酸性,并与乙醇催化脱水制乙烯的反应催化性能进行了关联.结果表明,F-Nb改性后的HZSM-5分子筛发生了明显的脱铝现象,且随着F离子添加量的增加,脱铝越发严重.经 27Al MAS NM...
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| 关 键 词： | 氧化铌 氟化铵 HZSM-5分子筛 固体酸催化剂 乙醇 乙烯 脱水 |
| 收稿时间： | 2010-12-03 |
Effects of F/Nb mol ratio of F-Nb/HZSM-5 catalyst on the catalytic performance for ethanol dehydration to ethylene |
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| LI Ning,LU Cui-yun,XU Dong-sheng,HU Yi,HAN Yu-wang. Effects of F/Nb mol ratio of F-Nb/HZSM-5 catalyst on the catalytic performance for ethanol dehydration to ethylene[J]. Journal of Fuel Chemistry and Technology, 2011, 39(11): 850-855 |
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| Authors: | LI Ning LU Cui-yun XU Dong-sheng HU Yi HAN Yu-wang |
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| Affiliation: | LI Ning1,LU Cui-yun1,XU Dong-sheng1,HU Yi2,HAN Yu-wang1(1.College of Science,Nanjing University of Technology,Nanjing 210009,China,2.State Key Laboratory of Materials-Oriented Chemical Engineering,China) |
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| Abstract: | The structures and surface acidities of F-Nb/HZSM-5 catalysts with different F/Nb mol ratio were studied using BET,NH3-TPD,FT-IR,MAS-NMR and SEM.The catalytic performance of these catalysts for ethanol dehydration to ethylene was evaluated and correlated with the characterization results.It is found that,dealumination of HZSM-5 occurred after modification and the depth of dealumination increased with the increase of the amount of F added.The extra-framework aluminum species were observed by 27Al MAS NMR wit... |
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| Keywords: | niobium oxide ammonium fluoride HZSM-5 molecular sieve solid acid catalyst ethanol ethylene dehydration |
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