| Ni系碳二馏分选择加氢催化剂的制备和表征 |
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| 引用本文： | 刘永富,戴伟,傅吉全,彭晖,刘海江.Ni系碳二馏分选择加氢催化剂的制备和表征[J].石油化工,2008,37(3):222. |
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| 作者姓名： | 刘永富 戴伟 傅吉全 彭晖 刘海江 |
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| 作者单位： | 1. 北京服装学院,材料科学与工程学院,北京,100029
2. 中国石油化工股份有限公司,北京化工研究院,北京,100013 |
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| 摘 要： | 用浸渍法和微乳液法制备了Ni含量相同的Ni/Al2O3催化剂,在固定床反应器中评价了Ni/Al2O3催化剂在碳二馏分选择加氢反应中的催化性能,采用低温N2吸附-脱附、X射线衍射、扫描电子显微镜和透射电子显微镜等方法对催化剂进行了表征。实验结果表明,在原料气组成和反应条件相同的情况下,微乳液法制备的Ni/Al2O3催化剂的活性和选择性明显高于浸渍法制备的Ni/Al2O3催化剂;微乳液法制备的Ni/Al2O3催化剂在75℃下乙炔转化率和乙烯选择性分别为96.95%和49.54%。表征结果显示,与浸渍法制备的Ni/Al2O3催化剂相比,微乳液法制备的Ni/Al2O3催化剂的活性组分粒径更小、在载体上分散更均匀,且活性组分与载体之间有相互作用。
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| 关 键 词： | 镍催化剂 碳二馏分 乙炔 选择加氢 微乳液 |
Preparation and Characterization of Ni Catalysts for Selective Hydrogenation of C_2 Fraction |
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| Liu Yongfu,Dai Wei,Fu Jiquan,Peng Hui,Liu Haijiang.Preparation and Characterization of Ni Catalysts for Selective Hydrogenation of C_2 Fraction[J].Petrochemical Technology,2008,37(3):222. |
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| Authors: | Liu Yongfu Dai Wei Fu Jiquan Peng Hui Liu Haijiang |
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| Affiliation: | Liu Yongfu1,Dai Wei2,Fu Jiquan1,Peng Hui2,Liu Haijiang2(1.Department of Materials Science , Engineering,Beijing Institute of Clothing Technology,Beijing 100029,China,2.Beijing Research Institute of Chemical Industry,SINOPEC,Beijing 100013,China) |
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| Abstract: | Ni/Al2O3 catalysts with same nickel content were prepared by impregnation and microemulsion method separately,and their catalytic properties in selective hydrogenation of acetylene in C2 fraction were evaluated in a fixed bed reactor.The catalysts were characterized by N2 adsorption-desorption,XRD,SEM and TEM.Activity and selectivity of Ni/Al2O3 catalyst prepared by microemulsion method are significantly higher than those of the catalyst prepared by impregnation method when keeping composition of feed gas a... |
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| Keywords: | nickel catalyst C2 fraction acetylene selective hydrogenation microemulsion |
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