| 大孔Re_2O_7/Al_2O_3催化剂的制备及其丁烯歧化制丙烯的性能 |
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| 引用本文： | 王海涛,袁桂梅,侯永兴,靳海燕,陈胜利,夏玥穜.大孔Re_2O_7/Al_2O_3催化剂的制备及其丁烯歧化制丙烯的性能[J].石油化工,2008,37(11). |
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| 作者姓名： | 王海涛 袁桂梅 侯永兴 靳海燕 陈胜利 夏玥穜 |
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| 作者单位： | 1. 中国石油大学,北京,重质油国家重点实验室,北京,102249
2. 中国石油天然气股份有限公司,大港石化分公司,天津,300280 |
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| 基金项目： | 中国石油天然气股份有限公司基金项目(W06-03A-02-01-03); 中国石油天然气股份有限公司大港石化分公司基金项目(2006/3-25) |
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| 摘 要： | 为提高丁烯歧化制丙烯反应催化剂的性能,以聚苯乙烯(PS)微球为模板剂制备了具有大孔结构的 Al_2O_3载体。通过表征可知,随模板剂加入量的增加,载体的比表面积和孔体积均有较大增加,且加入模板剂(粒径100～300 nm)只增加大孔体积,基本不改变中孔和微孔的体积。用大孔 Al_2O_3载体负载活性组分铼氧化物,得到的 Re_2O_7/Al_2O_3催化剂用于丁烯歧化制丙烯反应。实验结果表明,制备的 Re_2O_7/Al_2O_3催化剂不但保持了原有的高歧化反应选择性(90%～95%),而且具有更大的容碳能力,提高了催化剂的活性和使用寿命。当m(PS):m(Al_2O_3)=0.30时,丁烯的转化率约为50%,接近平衡转化率。
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| 关 键 词： | 氧化铝载体 铼基催化剂 丁烯 歧化 丙烯 |
Preparation of Macroporous Re2O7/Al2O3 Catalyst and Its Catalytic Performance in Metathesis of Butene to Propylene |
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| Wang Haitao,Yuan Guimei,Hou Yongxing,Jin Haiyan,Chen Shengli,Xia Yuetong.Preparation of Macroporous Re2O7/Al2O3 Catalyst and Its Catalytic Performance in Metathesis of Butene to Propylene[J].Petrochemical Technology,2008,37(11). |
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| Authors: | Wang Haitao Yuan Guimei Hou Yongxing Jin Haiyan Chen Shengli Xia Yuetong |
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| Abstract: | Macropore alumina support for Re_2O7/Al_2O_3 catalyst was prepared by using polystyrene (PS) microspheres as template to improve its performance in metathesis of butane to propylene.Both total pore volume and BET specific surface area of the catalyst increased considerably along with amount of PS template used.Using PS template (particle size 100-300 nm) only increased volume of macropores,but kept total volume of meso and micro pores basically unchanged.Re_2O_7/Al_2O_3 catalysts were prepared by loading rh... |
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| Keywords: | alumina support rhenium heptoxide catalyst butene metathesis propylene |
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