| 载体对Cu-Co催化剂催化CO_2加氢合成乙酸反应的影响 |
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| 引用本文： | 刘源,黄伟,喻仕瑞,王晓东.载体对Cu-Co催化剂催化CO_2加氢合成乙酸反应的影响[J].煤化工,2012,40(5):80-83. |
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| 作者姓名： | 刘源 黄伟 喻仕瑞 王晓东 |
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| 作者单位： | 1. 太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原,030024
2. 太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原030024;贵州大学,贵州 贵阳550025 |
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| 基金项目： | 国家自然科学基金，973计划，贵州省科学技术基金，教育部博士点基金优先发展领域课题，教育部科学技术研究重点项目 |
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| 摘 要： | 采用等体积浸渍法制备了以TiO2、Al2O3、SiO2为载体的Cu-Co基双金属催化剂,在固定床反应器上,考察了其催化CO2加氢合成乙酸的性能,并用X射线衍射、NH3-TPD、H2-TPR等对催化剂进行了表征。结果表明,以TiO2为载体的Cu-Co基催化剂有最好的催化活性和选择性,乙酸生成速率可达16.41 mg/(gcat.h),选择性为81.3%。研究认为,催化剂表面适量的中强酸性、金属良好的分散性以及CuCo2O4的生成是影响催化性能的关键因素。
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| 关 键 词： | CO2 乙酸 加氢合成 载体 Cu-Co催化剂 |
Effect of Supports on Cu-Co Catalyst Performance for Synthesis of Acetic Acid from CO2 Hydrogenation |
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| Liu Yuan
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Huang Wei
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Yu Shirui
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Wang Xiaodong.Effect of Supports on Cu-Co Catalyst Performance for Synthesis of Acetic Acid from CO2 Hydrogenation[J].Coal Chemical Industry,2012,40(5):80-83. |
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| Authors: | Liu Yuan Huang Wei Yu Shirui Wang Xiaodong |
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| Affiliation: | 1(1.Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology,Taiyuan Shanxi 030024,China; 2.Guizhou University,Guiyang Guizhou 550025,China) |
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| Abstract: | Cu-Co bimetallic catalysts were prepared by equal volume impregnation. The effect of supports was inves- tigated for synthesis of acetic acid from CO2 hydrogenation. The catalysts were characterized by XRD, NH3-TPD and H2- TPR. The results showed that the supports had a great impact on the catalytic performance. Compared with A1203 and SiO2, TiO2 as the support was the best, the formation rate of acetic acid reached 16.41 mg/（gcat, h）, and the corresponding se- lectivity was 81.3 %. It concluded that the dispersion of the active metal over TiO2, the amount of surface acidity and the formation of CuCo2O4 also favored the reaction. |
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| Keywords: | CO2 acetic acid hydrogenation support Cu-Co catalyst |
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