| 铜基甲醇合成催化剂的TPR研究 |
| |
| 引用本文： | 郭宪吉,叶长明,赵蕾,王向宇,李利民. 铜基甲醇合成催化剂的TPR研究[J]. 工业催化, 2002, 10(3): 25-28 |
| |
| 作者姓名： | 郭宪吉 叶长明 赵蕾 王向宇 李利民 |
| |
| 作者单位： | 郑州大学化学系，河南 郑州 450052 |
| |
| 摘 要： | 采用并流共沉淀法制备了一系列具有不同Cu/Zn的甲醇合成催化剂。通过活性测试可知,并流法所制备的催化剂最佳Cu/Zn大约为5/4。催化剂TPR研究表明 , 当铝含量固定时，具有最佳Cu/Zn（即5/4）的铜基催化剂，其主还原温度最低。考察了在不同pH值时进行并流共沉淀所制备的催化剂的TPR，表明沉淀时的pH值对催化剂的结构有很大影响，并对其本质原因进行了深入探讨。另外，考察了铝含量对催化剂还原行为的影响以及在不同升温速率下催化剂TPR的差异。
|
| 关 键 词： | 合成甲醇 铜基催化剂 一步并流共沉淀法 |
| 文章编号： | 1008-1143(2002)03-0025-04 |
| 修稿时间： | 2001-07-13 |
TPR study on copper-based methanol synthesis catalysts |
| |
| GUO Xian ji,YE Chang ming,ZHAO Lei,WANG Xiang yu,LI Li min. TPR study on copper-based methanol synthesis catalysts[J]. Industrial Catalysis, 2002, 10(3): 25-28 |
| |
| Authors: | GUO Xian ji YE Chang ming ZHAO Lei WANG Xiang yu LI Li min |
| |
| Affiliation: | Department of Chemistry , Zhengzhou University , Henan Zhengzhou 450052 ,; China |
| |
| Abstract: | A series of copper based catalysts with different Cu/Zn ratio(mole) were prepared by one step parallel flow co precipitation. The activity test showed that the optimum Cu/Zn ratio was around 1.25. TPR results of the catalysts showed that when aluminum content is fixed, the catalyst sample with the optimum Cu/Zn ratio has the lowest reduction temperature. The TPR results of the catalyst samples prepared at different pH values showed that the structure of copper based catalyst is greatly affected by pH values in the precipitation process. The causes behind this were discussed in detail. Effect of aluminum content on reduction behaviour of copper based catalyst was also investigated. TPR results at different rate of heating were compared. |
| |
| Keywords: | copper based catalyst methanol synthesis one step concurrent co precipitation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《工业催化》浏览原始摘要信息 |
|
点击此处可从《工业催化》下载全文 |
