Catalytic methanation of syngas over Ni-based catalysts with different supports |
| |
Authors: | Yincong Liu Lingjun Zhu Xiaoliu Wang Shi Yin Furong Leng Fan Zhang Haizhou Lin Shurong Wang |
| |
Affiliation: | State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China |
| |
Abstract: | Co-precipitation method was selected for the preparation of Ni/Al2O3, Ni/ZrO2 and Ni/CeO2 catalysts, and their performances in methanation were investigated in this study. The structure and surface properties of these catalysts were characterized by BET, XRD, H2-TPD, TEM and H2-TPR. The results showed that the catalytic activity at low temperature followed the order:Ni/Al2O3>Ni/ZrO2>Ni/CeO2. Ni/Al2O3 catalyst presented the best catalytic performance with the highest CH4 selectivity of 94.5%. The characterization results indicated that the dispersion of the active component Ni was the main factor affecting the catalytic activity and the one with higher dispersion gave better performance. |
| |
Keywords: | Methanation Ni dispersion Catalytic activity Catalyst support Stability |
本文献已被 CNKI 万方数据 等数据库收录! |
| 点击此处可从《中国化学工程学报》浏览原始摘要信息 |
|
点击此处可从《中国化学工程学报》下载全文 |
|