| 助剂TiO2对CO2催化加氢制甲醇催化剂CuO-ZnO-Al2O3性能的影响 |
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| 引用本文： | 张鲁湘,张永春,陈绍云.助剂TiO2对CO2催化加氢制甲醇催化剂CuO-ZnO-Al2O3性能的影响[J].燃料化学学报,2011,39(12):912-917. |
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| 作者姓名： | 张鲁湘 张永春 陈绍云 |
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| 作者单位： | Department of Catalysis Chemistry and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China |
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| 摘 要： | 采用共沉淀法,用助剂TiO2对CuO-ZnO-Al2O3催化剂改性,TiO2由钛酸正丁酯水解而得,并考察了其在CO2催化加氢制甲醇反应中的催化性能.在反应温度260℃、压力2.6 MPa、H2∶CO2 =3∶1(体积比)、SV=3600 mL/(g·h)条件下,与空白样CuO-ZnO-Al2O3比较,结果显示,TiO2...
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| 关 键 词： | TiO2 助剂 CO2催化加氢 甲醇 |
| 收稿时间： | 2011-05-09 |
Effect of promoter TiO_2 on the performance of CuO-ZnO-Al_2O_3 catalyst for CO_2 catalytic hydrogenation to methanol |
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| ZHANG Lu-xiang,ZHANG Yong-chun,CHEN Shao-yun.Effect of promoter TiO_2 on the performance of CuO-ZnO-Al_2O_3 catalyst for CO_2 catalytic hydrogenation to methanol[J].Journal of Fuel Chemistry and Technology,2011,39(12):912-917. |
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| Authors: | ZHANG Lu-xiang ZHANG Yong-chun CHEN Shao-yun |
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| Institution: | ZHANG Lu-xiang,ZHANG Yong-chun,CHEN Shao-yun (Department of Catalysis Chemistry and Engineering,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | CuO-ZnO-Al2O3 was modified by co-precipitation, using TiO2 obtained from hydrolyzation of tetra-n-butyl titanate (C16H36O4Ti). The catalytic performances were investigated under the conditions of 260℃, 2.6MPa, H2∶CO2=3∶1 (volume ratio) and SV of 3600mL/(g·h). The modified samples showed a higher performance than CuO-ZnO-Al2O3 and 4% was the optimal dosage. XRD, H2-TPR, H2-TPD, NH3-TPD and CO2-TPD characterizations were performed. TiO2 improved CuO dispersion in the catalyst and enhanced the adsorption/activation of CO2 and H2 on the surface of catalyst, leading to easier reduction of CuO and lower concentration of strong acid sites on the surface of catalyst simultaneously. |
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| Keywords: | TiO2 promoter CO2 catalytic hydrogenation methanol |
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