| 硅铝比对完全液相法制备的一步法二甲醚合成催化剂反应性能的影响 |
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| 引用本文： | 黄伟,宋雅君,樊金串,阴丽华.硅铝比对完全液相法制备的一步法二甲醚合成催化剂反应性能的影响[J].高等学校化学学报,2011,32(1):118-123. |
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| 作者姓名： | 黄伟 宋雅君 樊金串 阴丽华 |
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| 作者单位： | 太原理工大学煤科学与技术教育部和山西省重点实验室; |
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| 基金项目： | 国家自然科学基金(批准号:20706039,20471040); 国家“九七三”计划项目(批准号:2005CB221204)资助 |
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| 摘 要： | 采用完全液相法制备了不同Si/Al摩尔比的浆状一步法二甲醚合成催化荆,在搅拌式反应釜中对其催化性能进行了评价.通过XRD,NH3-TPD-MS,H2-TPR和XPS等方法表征了催化剂的体相结构和表面性质.结果表明,完全液相法制备的CuZnSiAl催化剂在反应前其活性组分Cu主要以低价态存在,Cu晶粒大小是影响其活性的主...
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| 关 键 词： | 二甲醚 浆态床 Si/Al摩尔比 完全液相法 |
| 收稿时间： | 2010-05-05 |
Effect of Si/Al Ratio on the Performance of Cu-Zn-Si-Al Catalyst Prepared by Complete Liquid-phase Technology for Dimethyl Ether Synthesis from Syngas |
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| HUANG Wei,SONG Ya-Jun,FAN Jin-Chuan,YIN Li-Hua.Effect of Si/Al Ratio on the Performance of Cu-Zn-Si-Al Catalyst Prepared by Complete Liquid-phase Technology for Dimethyl Ether Synthesis from Syngas[J].Chemical Research In Chinese Universities,2011,32(1):118-123. |
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| Authors: | HUANG Wei SONG Ya-Jun FAN Jin-Chuan YIN Li-Hua |
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| Institution: | HUANG Wei,SONG Ya-Jun,FAN Jin-Chuan,YIN Li-Hua(Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | A series of Cu-Zn-Al-Si bifunctional catalysts with different Si/Al molar ratios were prepared by a novel method named complete liquid phase method,and the catalytic performance was evaluated in a slurry reactor.The catalysts were characterized by means of XRD,NH3-TPD-MS,H2-TPR and XPS.The results showed that Cu species was present as low-valence in the fresh catalysts prepared by complete liquid-phase technology.The grain size of Cu had major impact on the catalytic activity.The change of Si/Al molar ratio... |
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| Keywords: | Dimethyl ether(DME) Slurry reactor Si/Al molar ratio Complete liquid-phase technology |
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