| 李凝.焙烧温度对有色金属尾矿载体及Ni基催化剂的性能影响[J].分子催化,2012,(4):300-307 |
| 焙烧温度对有色金属尾矿载体及Ni基催化剂的性能影响 |
| Influences of Calcination Temperature to the Propertiy of Nonferrous Metal Tailings Supports and Ni based Catalysts |
| 投稿时间：2012-06-02 修订日期：2012-08-15 |
| DOI： |
| 中文关键词: 有色金属尾矿 载体 Ni基催化剂 |
| 英文关键词:nonferrous metal tailings supports Ni based catalyst |
| 基金项目:国家自然科学基金项目（21166006） |
|
| 摘要点击次数: 1567 |
| 全文下载次数: 2350 |
| 中文摘要: |
| 以有色金?属尾矿为载体原料，经不同温度焙烧预处理、等体积浸渍制备了镍基催化剂并用于CO2重整CH4制合成气，重点考察了有色金属尾矿焙烧温度对催化剂性能的影响。用ICP-AES， XRD测定了有色金属尾矿的成分，用H2-TPR，CO2-TPD，TPO等对催化剂的还原性能、吸附性能、抗积碳性能进行了表征。结果表明，850℃焙烧的有色金属尾矿负载镍基催化剂具有较好的还原性能、CO2吸附性能、催化活性以及抗积碳性能。在800℃条件下重整反应CO2转化率为78.5%，CH4转化率为71.2%，CO选择性达92.2%。 |
| 英文摘要: |
| Utilizing calcined nonferrous metal tailings as supports to propared a series of Ni based catalysts by wetness impregation method and employed in the CO2 reforming of CH4 to syngas,the appropriate calcination temperature of tailings material has been emphatically studied.ICP-AES, XRD were used to analysis the composition of tailings and the catalyst samples were also characterized by H2-TPR, CO2-TPD, TPO at the same time.The results showed that the Ni catalyst whose tailing-support calcined at 850℃ has a better redox, absorptive, anti-coking property and high catalytic activity. The conversion of CO2 and CH4 respectively was 78.5%, 71.2% ,and selectivity of CO was 92.2% when CO2 reforming of CH4 reaction was progressing at 800℃. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
