| 制备方法对Fe2O3/Al2O3-ZrO2在乙苯脱氢反应中催化性能的影响 |
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| 引用本文： | 张淑娇,李文英,李晓红.制备方法对Fe2O3/Al2O3-ZrO2在乙苯脱氢反应中催化性能的影响[J].燃料化学学报,2015,43(4):437-441. |
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| 作者姓名： | 张淑娇 李文英 李晓红 |
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| 作者单位： | 1. Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, China;
2. Training Base of Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan 030024, China |
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| 基金项目： | 山西省归国留学人员科技项目(2012-3);高等学校博士学科点专项科研基金(20121402110016)。 |
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| 摘 要： | 为提高含铁催化剂的脱氢活性,采用浸渍法和一步沉淀法制备了Fe、Al和Zr含量相同的F4AZ10-imp和F4AZ10-pre催化剂,在550 ℃考察了其在乙苯CO2氧化脱氢制苯乙烯反应过程中的催化性能,并结合XRD、N2-吸附、NH3-TPD、CO2-TPD和H2-TPR等表征手段对催化剂进行了分析。结果表明,与浸渍法相比,一步沉淀法制备的催化剂更有利于活性组分Fe2O3在催化剂表面的分散及反应物CO2的转化。
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| 关 键 词： | 制备方法 Fe2O3/Al2O3-ZrO2催化剂 乙苯 二氧化碳 脱氢反应 |
| 收稿时间： | 2014-12-17 |
Effect of preparation methods on the catalytic properties of Fe2O3/Al2O3-ZrO2 for ethylbenzene dehydrogenation |
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| ZHANG Shu-jiao,LI Wen-ying,LI Xiao-hong.Effect of preparation methods on the catalytic properties of Fe2O3/Al2O3-ZrO2 for ethylbenzene dehydrogenation[J].Journal of Fuel Chemistry and Technology,2015,43(4):437-441. |
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| Authors: | ZHANG Shu-jiao LI Wen-ying LI Xiao-hong |
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| Institution: | 1. Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, China;
2. Training Base of Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan 030024, China |
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| Abstract: | To improve the catalytic performance of iron-based catalysts for dehydrogenation of ethylbenzene with CO2, two samples, F4AZ10-imp and F4AZ10-pre, with the same contents of Fe, Al and Zr were prepared by the impregnation method and one-step precipitation method. The catalytic performance of these two samples for the dehydrogenation of ethylbenzene with CO2 was tested at 550 ℃. Both the samples are characterized with XRD, NH3-TPD, CO2-TPD and H2-TPR techniques and N2 sorption experiment. It was shown that the preparation methods had a great effect on the catalytic performance. Compared to the impregnation method, the one-step precipitation method gave a more active catalyst because of a higher dispersion of active Fe2O3 on the catalyst surface and a stronger activation of CO2. |
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| Keywords: | preparation method 2 ethylbenzene carbon dioxide dehydrogenation |
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