| 老化时间对Cu-Co合成低碳醇催化剂性能的影响 |
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| 引用本文： | 房德仁,李婉君,刘中民,姜雪梅,张慧敏.老化时间对Cu-Co合成低碳醇催化剂性能的影响[J].工业催化,2013,21(9):38-42. |
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| 作者姓名： | 房德仁 李婉君 刘中民 姜雪梅 张慧敏 |
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| 作者单位： | 1.烟台大学应用催化研究所，山东 烟台 264005;
2.中国科学院大连化学物理研究所，辽宁 大连 116023 |
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| 摘 要： | 以并流共沉淀法制备Cu-Co催化剂，通过XRD、XPS、TPR和BET方法测定老化时间对催化剂前驱体和催化剂物性参数的影响，采用加压固定床流动反应器测定催化剂的合成低碳醇反应活性。结果表明,Cu-Co催化剂前驱体中主要存在Cu2CO3(OH)2、β-Co(OH)2和CoOOH等物相,还原过程中,CuO和CoO之间存在相互作用。低碳醇的分布表明,增强活性金属间的协同作用有利于低碳醇的生成。所有催化剂的C2+OH含量占总醇含量的比例大于65%，而烃类含量占总产物的比例小于10%。
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| 关 键 词： | 催化剂工程 Cu-Co催化剂 合成低碳醇 老化时间 前驱体 协同作用 |
Influence of aging time on the performance of Cu-Co catalyst for higher alcohol synthesis |
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| FANG Deren
,
LI Wanjun
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LIU Zhongmin
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JIANG Xuemei
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ZHANG Huimin.Influence of aging time on the performance of Cu-Co catalyst for higher alcohol synthesis[J].Industrial Catalysis,2013,21(9):38-42. |
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| Authors: | FANG Deren LI Wanjun LIU Zhongmin JIANG Xuemei ZHANG Huimin |
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| Affiliation: | 1.Institute of Applied Catalysis of Yantai University, Yantai 264005, Shandong, China; 2.Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China |
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| Abstract: | Cu-Co catalysts were made by co-current precipitation method.The influence of aging time on the precursors and catalysts were investigated by XRD,XPS,TPR and BET method.The catalytic activity of the catalysts for higher alcohols synthesis was evaluated in a pressurized fixed-bed flow reactor.The resultsshowed that there mainly existed Cu2CO3(OH)2,β-Co(OH)2 and CoOOH in Cu-Co precursors.There was the interaction between CuO and CoO during the reduction.The distribution of the alcohols demonstrated that the increase of the synergism between the two active metals was favorable to the formation of higher alcohol.In all the samples the content of C2+OH was more than 65% in the total alcohols,and the content of hydrocarbon was lower than 10% in the total products. |
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| Keywords: | catalyst engineering Cu-Co catalyst higher alcohols synthesis aging time precursor synergistic reaction |
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