| 助剂钾对二氧化碳加氢反应活性及产物分布的影响 |
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| 引用本文： | 索掌怀,寇元.助剂钾对二氧化碳加氢反应活性及产物分布的影响[J].分子催化,1997,11(1):45-49. |
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| 作者姓名： | 索掌怀 寇元 |
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| 作者单位： | 中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室 |
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| 摘 要： | 报导助剂Ｋ对Ａｌ２Ｏ３，ＴｉＯ２，ＺｒＯ２担载Ｆｅ催化剂，用于ＣＯ２加氢合成Ｃ２＋烃的催化活性及产物分布的影响。与不含Ｋ的催化剂相比，Ｋ的存在导致Ｆｅ／Ｋ－Ａｌ２Ｏ３的催化活性及Ｃ＾２＋烃选择性明显提高，但使Ｆｅ／Ｋ－ＴｉＯ２的催化活性及Ｃ２＋烃选择性显著下降，而对Ｆｅ／Ｋ－ＺｒＯ２，这种影响并不显著。Ｋ的明显有利于低碳烯烃的生存。
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| 关 键 词： | 铁催化剂 钾 二氧化碳 加氢反应 金属催化剂 |
Influences of Potassium Promoter on the Catalytic Activity and the Product Distribution in CO 2 Hydrogenation |
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| SUO Zhanghuai,KOU Yuan,WANG Hongli.Influences of Potassium Promoter on the Catalytic Activity and the Product Distribution in CO 2 Hydrogenation[J].Journal of Molecular Catalysis (China),1997,11(1):45-49. |
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| Authors: | SUO Zhanghuai KOU Yuan WANG Hongli |
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| Institution: | State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics The Chinese Academy of Sciences Lanzhou 730000 |
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| Abstract: | Influences of potassium on the catalytic activity and the product distribution for CO 2 hydrogenation over a series of supported iron oxide catalysts are reported. Comparing with Fe/Al 2O 3, Fe/K Al 2O 3 catalyst displays good activity and selectivity to C 2+ hydrocarbons. However, the presence of potassium makes the catalytic activity and the selectivity to C 2+ hydrocarbons decrease for Fe/K ZrO 2 or Fe/K TiO 2 catalyst. Addition of potassium is beneficial to the formation of lower olefins. |
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| Keywords: | Iron catalyst Potassium promoter CO 2 hydrogenation C 2+ hydrocarbons |
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