| Rh－Co／Al_2O_3双金属催化剂上CO加氢反应 |
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| 引用本文： | 周建略,陈耀强,曹昭,龚茂初,陈豫.Rh－Co／Al_2O_3双金属催化剂上CO加氢反应[J].天然气化工,1994(3). |
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| 作者姓名： | 周建略 陈耀强 曹昭 龚茂初 陈豫 |
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| 作者单位： | 四川大学化学系 |
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| 摘 要： | 用非传统方法制备了Ｒｈ２Ｃｏ２／Ａｌ２Ｏ３、Ｃｏ２／Ａｌ２Ｏ３、Ｒｈ４／Ａｌ２Ｏ３和用传统方法制备了（Ｒｈ＋Ｃｏ）／Ａｌ２Ｏ３催化剂。用连续流动微反装置研究了上述催化剂的ＣＯ加氢活性及选择性，并系统地研究了Ｈ２／ＣＯ比值和温度对反应活性及选择性的影响。结果表明，Ｒｈ２Ｃｏ２／Ａｌ２Ｏ３的活性不仅高于Ｒｈ４／Ａｌ２Ｏ３和Ｃｏ２／Ａｌ２Ｏ３，而且也高于（Ｒｈ＋Ｃｏ）／Ａｌ２Ｏ３，在选择性方面与上述样品也有明显差异。当Ｈ２／ＣＯ比值从６：１变到１：１时，其它催化剂的反应活性大为降低，而Ｒｈ２Ｃｏ２／Ａｌ２Ｏ３仍保持高活性。
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| 关 键 词： | 铑钴原子簇，铑钴双金属催化剂，CO加氢 |
CO hydrogenation on bimetallic Rh-Co catalysts |
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| Zhou Jianlue,Chen Yaoqiang,Cao Zhao,Gong Maochu, Chen Yu.CO hydrogenation on bimetallic Rh-Co catalysts[J].Natural Gas Chemical Industry,1994(3). |
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| Authors: | Zhou Jianlue Chen Yaoqiang Cao Zhao Gong Maochu Chen Yu |
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| Abstract: | Rh2Co2/Al2O3, Co2/Al2O3, and Rh4/Al2O3catalysts were prepared by non-traditionalmethods ,and (Rh+Co ) /Al2O3 by a traditionalone.The activities and selectivities of thesecatalysts for CO hydrogenation were tested ina continuous flow micro-reactor, and the effects of H2/CO ratio and temperatures on activity and selectivity for the reaction were alsoinvestigated. The results show that the activity of Rh2Co2/Al2O3 catalyst is higher not onlythan Rh4/Al2O3 and Co2/Al2O3, but also than(Rh+Co)/Al2O3, and the former is obviouslydifferent from the others in selectivity.Whenthe H2:CO ratio changes from 6: 1 to l: 1,Rh2Co2/Al2O3 retains its high activity whilethose of thd other catalysts decrease significantly. |
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| Keywords: | Rh-Co clusters Rh-Co bimetallic catalyst CO hydrogenation |
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