| 合成气直接制取二甲醚的双功能催化剂 |
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| 引用本文： | 葛庆杰,黄友梅,张天莉.合成气直接制取二甲醚的双功能催化剂[J].天然气化工,1996(5). |
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| 作者姓名： | 葛庆杰 黄友梅 张天莉 |
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| 作者单位： | 中国科学院兰州化学物理研究所 |
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| 摘 要： | 采用反应评价并结合ＸＲＤ、ＴＰＲ、吡啶－ＴＰＤ、ＣＯ２－ＴＰＤ、ＸＰＳ等物化测试手段研究了不同制备方法对ＣｕＯ／ＺｎＯ／Ａｌ２Ｏ３催化剂结构和催化性能的影响，揭示了不同方法制备催化剂的特点，发现共沉淀沉积法制备的ＣｕＯ／ＺｎＯ／Ａｌ２Ｏ３催化剂对合成气直接制取二甲醚具有优良的催化性能，ＣＯ转化率达８２％，二甲醚在有机物中选择性为９６％。
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| 关 键 词： | 合成气 二甲醚 CuO／ZnO／Al2O3催化剂 制备方法 |
Bifunctional catalysts for direct synthesis of dimethyl ether from synthesis gas Ⅰ.Study on the preparation method |
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| Ge Qingjie,Huang Youmei,Zhang Tianli.Bifunctional catalysts for direct synthesis of dimethyl ether from synthesis gas Ⅰ.Study on the preparation method[J].Natural Gas Chemical Industry,1996(5). |
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| Authors: | Ge Qingjie Huang Youmei Zhang Tianli |
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| Abstract: | The effect of preparation methods on catalytic properties and the structures of CuO/ZnO/Al 2O 3 catalysts was investigated. Catalytic synthesis of dimethyl ether from synthesis gas was evaluated in a fixed bed flow microreactor at pressure 4.0MPa, GHSV 1500h -1 . Characterization of the catalysts has been carried out using XRD,TPR,pyridine TPD,CO 2 TPD,XPS. The results indicate that CuO/ZnO/Al 2O 3 catalyst prepared by coprecipitation sedimentation method exhibited the highest catalytic activity for direct synthesis of dimethyl ether from synthesis gas conversion of CO:82%, selectivity for DME(in organic compounds):96%. |
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| Keywords: | synthesis gas dimethyl ether CuO/ZnO/Al 2O 3 catalysts preparation methods |
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