| 二步共沉淀法制备的铜基甲醇合成催化剂的研究 |
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| 引用本文： | 化明利,郭宪吉,鲍改玲,谭羚艳.二步共沉淀法制备的铜基甲醇合成催化剂的研究[J].天然气化工,2003,28(6):1-4. |
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| 作者姓名： | 化明利 郭宪吉 鲍改玲 谭羚艳 |
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| 作者单位： | 1. 许昌市质量技术监督检验测试中心,河南许昌,461000
2. 郑州大学化学系,河南郑州,450052 |
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| 基金项目： | 河南省自然科学基金资助课题 (0 1 1 1 0 3 0 80 0 ) |
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| 摘 要： | 固定Al含量为10%(Al/(Cu+Zn+Al),原子百分比),应用二步同时加料共沉淀法制备了一系列具有不同Cu/Zn比例的铜基甲醇合成催化剂。通过测试催化剂活性、结构和还原性质表明,n(Cu)/n(Zn)=4/5的催化剂中,CuO与ZnO二组分间相互均匀分散程度最大,催化剂活性最高,催化剂还原温度最低。考察了焙烧温度对催化剂活性、结构及还原过程的影响。
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| 关 键 词： | 铜基催化剂 甲醇合成 二步共沉淀法 Cu/Zn比例 焙烧温度 |
| 文章编号： | 1001-9219(2003)06-01-04 |
| 修稿时间： | 2003年4月21日 |
Study on Copper-based Catalyst for Methanol Synthesis Prepared by Two-step Coprecipitation |
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| HUA Ming-li,GUO Xian-ji,BAO Gai-ling,TAN Ling-yan.Study on Copper-based Catalyst for Methanol Synthesis Prepared by Two-step Coprecipitation[J].Natural Gas Chemical Industry,2003,28(6):1-4. |
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| Authors: | HUA Ming-li GUO Xian-ji BAO Gai-ling TAN Ling-yan |
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| Abstract: | A series of copper-based catalysts with the same Al content (10%, mole) but different Cu/Zn mole ratio were prepared by two-step coprecipitation. The catalytic activities, structure and TPR properties of these copper-based catalysts were investigated. Among these catalysts, the catalyst with Cu/Zn = 4/5 has the highest catalytic activity and the lowest reduction temperature because the extent of uniform dispersion between CuO and ZnO in the catalyst is the biggest. The influence of calcination temperature on the structure and properties of the catalysts was also studied. |
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| Keywords: | copper-based catalyst methanol synthesis two-step coprecipitation Cu/Zn ratio calcination temperature |
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