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| 焙烧温度对Al2O3载体及Pd／Al2O3催化剂性能的影响 | |
| 引用本文： | 何小荣,朱家义,胡晓丽,李平智,段宏昌.焙烧温度对Al2O3载体及Pd／Al2O3催化剂性能的影响[J].石化技术与应用,2009,27(3):233-237. |
| 作者姓名： | 何小荣 朱家义 胡晓丽 李平智 段宏昌 |
| 作者单位： | 1. 兰州石化职业技术学院,石化系,甘肃,兰州,730060 2. 中国石油兰州石化公司,污水处理厂,甘肃,兰州,730060 3. 中国石油兰州化工研究中心,甘肃,兰州,730060 |
| 摘 要： | 采用CO2气体成胶制备了Al2O3载体，考察了载体焙烧温度对载体和相应Pd／Al2O3催化剂物理化学性质及催化性能的影响，并采用X射线衍射、BET等技术对载体及催化剂性能进行了表征。结果表明，随焙烧温度的升高，载体的比表面积、孔容减小，平均孔径逐渐增大，孔分布较集中。所制得的拟薄水铝石较纯净。400—800℃焙烧时，Al2O3载体只有γ—Al2O3晶型；1050℃时，主要以θ-Al2O3为主；到1250℃已完全转变为α—Al2O3。Pd／Al2O3催化剂均具有较高的双烯加氢活性和选择性，其中以970℃和1050℃焙烧载体制备的催化剂为最优。 |
| 关 键 词： | 拟薄水铝石 氧化铝载体 焙烧温度 加氢活性 |
Effect of calcination temperature of support on performance of Al_2O_3 support and Pd/Al_2O_3 catalyst |
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| He Xiaorong,Zhu Jiayi,Hu Xiaoli,Li Pingzhi,Duan Hongchang.Effect of calcination temperature of support on performance of Al_2O_3 support and Pd/Al_2O_3 catalyst[J].Petrochemical Technology & Application,2009,27(3):233-237. | |
| Authors: | He Xiaorong Zhu Jiayi Hu Xiaoli Li Pingzhi Duan Hongchang |
| Affiliation: | 1.Petrochemical Department;Lanzhou Petrochemical College of Vocational Technology;Lanzhou 730060;China;2.Wastewater Treatment Plant of Lanzhou Petrochemical Company;PtroChina;3.Lanzhou Petrochemical Research Center;China |
| Abstract: | Al_2O_3 support was prepared by carbon dioxide gelling method.The influences of calcination temperature of the support on the physical and chemical properties of Al_2O_3 support and performances of Pd/Al_2O_3 catalyst were studied.The prepared samples were characterized by X-ray diffraction and BET.The results showed that with the temperature increasing,the specific surface area and pore volume declined,the average aperture gradually augmented,distribution of pore were concentrated.The prepared pseudo-boehm... |
| Keywords: | pseudo-boehmite Al_2O_3 support calcination temperature hydrogenation activity |
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