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改性Fe/MnO催化剂的CO加氢催化性能与表面积碳(英文)

CATALYTIC BEHAVIOR AND COKE FORMATION OF MODIFIED Fe/MnO CATALYSTS

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【作者】 关乃佳云希勤单学蕾

【Author】 GUAN Nai-Jia; YUN Xi-Qin; SHAN Xue-Lei (Department of Chemistry Nankai University Tianjin 300071)

【机构】 南开大学化学系!天津300071

【摘要】 研究了一系列K、Cu、Co、Pd和Rh改性的Fd/MnO催化剂(Fe/Mn=1/4)的CO加氢性能以获得更多的C=2~C=4低碳烯烃。在T=543K,压力为1.1MPa和GHSV=215h-1的反应条件下发现,除K-Fe/MnO外,一氧化碳加氢活性在改性催化剂上均有很大提高。其中,在Cu和Co改性的催化剂上C=2~C=4烯烃有所提高。此外,还研究了积碳对催化活性的影响,发现了表面积碳量与催化活性的关系。

【Abstract】 A series of Fe/MnO catalysts (Fe/Mn=1/4) moditied with K, Cu,Co, Pd and Rh for CO hydrogenation were prepared to obtain a higher selectivity to low molecular weight olefins. The catalytic behavior of these catalysts was studied at temperature of 543 K, under pressure of 1. 1 MPa and with GHSV=215 h-1. It was found that the activity of CO hydrogenation increased over the modified Fe/MnO catalysts except K-Fe/MnO. An increase in tile selectivity to C=2~C=4 was also observed over Cu and Co modified catalysts. Influences of coke formation on the catalytic activities of cayalysts were investigated. A relationship between the activity of CO hydrogenation and coke deposits was suggested.

  • 【文献出处】 Journal of Natural Gas Chemistry ,天然气化学杂志(英文版) , 编辑部邮箱 ,1999年03期
  • 【分类号】O643.3
  • 【下载频次】105
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