| 还原温度对Ni-La2O3/SiO2-Al2O3催化剂加氢性能的影响 |
| |
| 引用本文： | 李江,宋美婷,李海涛,赵永祥.还原温度对Ni-La2O3/SiO2-Al2O3催化剂加氢性能的影响[J].河南化工,2013(16):26-28. |
| |
| 作者姓名： | 李江 宋美婷 李海涛 赵永祥 |
| |
| 作者单位： | [1]河南煤化精细化工有限公司,河南鹤壁458050 [2]山西大学化学化工学院精细化学品教育部工程研究中心,山西太原030006 |
| |
| 基金项目： | 国家自然科学基金（21073114） |
| |
| 摘 要： | 采用浸渍法制备Ni-La2O3/SiO2-Al2O3催化剂,对催化剂进行不同温度还原,并利用XRD、H2-TPR等表征,考察了还原温度对催化剂反应性能的影响.结果表明,低于400℃的还原条件下,NiO未被有效还原,催化剂表现出低的加氢活性；还原温度在450 ～ 550℃时,由于La2O3抑制了高温还原导致的活性组分Ni聚集长大,催化剂保持了高的加氢活性.
|
| 关 键 词： | Ni-La2O3 SiO2-Al2O3催化剂 还原 1 4-丁二醇 活性组分聚集 |
Effect of Reduction Temperature on Hydrogenation Performance of Ni-La2O3/SiO2-Al2O3 Catalyst |
| |
| Affiliation: | LI Jiang, SONG Mei -ting, LI Hai -tao, ZHAO Yong -xiang (1. Henan Coal Chemical Fine Chemical Co. Ltd , Hebi 458000 , China ; 2. School of Chemistry and Chemical Engineering , Engineering Research Center of Ministry of Education for Fine Chemicals , Shanxi University , Taiyuan 030006 , China) |
| |
| Abstract: | Ni-La2O3/SiO2-Al2O3 catalyst is prepared by impregnation, reduced at difl＇erent tempera- tures and characterized with XRD, H2 - TPR. The influence of reduction temperature on the catalyst per- formance is investigated. The result shows that less than 400 ℃reducing conditions,NiO reduction is not effective,and the hydrogenation catalyst show low activity. Between the reduction temperature 450 - 550℃, the catalyst maintains a high hydrogenation activity, because the La2O3 suppressed Ni aggregation due to the high temperature reduction. |
| |
| Keywords: | Ni-La2O3/SiO2-Al2O3 catalyst reduced 1 4 - neotran activity components aggregation |
| 本文献已被 维普 等数据库收录！ |
|
