富氢中CO选择氧化CuO-CeO_2催化剂性能的研究

摘要用质量分数为20%的草酸溶液沸煮处理80～100目的堇青石载体,考察了酸处理时间对载体失重率、机械强度和比表面积的影响。采用等体积浸渍法在处理后的载体上负载CuO-CeO2活性组分制得催化剂,利用色谱流动反应法进行了活性测试,测试结果表明,用草酸处理2h的堇青石载体上负载质量分数为15%CuO-CeO2制得的催化剂对CO氧化保持较高的活性和选择性。

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	吴刚强
	郎中敏

关键词：预处理草酸 CO选择氧化富氢

Abstract： Cordierite granule with higher surface has been obtained by boiled in oxalic acid.The effect of treatment time on the carrier loss,the mechanical intensity and the surface area was analyzed.CuO-CeO_2 was coated on the cordierite carrier by soaking.Gas chromatography was used to test the catalytic property of CuO-CeO_2/cord catalyst.Results showed when 15%(weight ratio)CuO-CeO_2 was coated on the cordierite,treated 2 h in oxalic acid,the CuO-CeO_2/cord catalyst exhibited a better catalytic activity and selectivity for CO selective oxidation in H_2-rich streams.

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Received 2009-07-15; published 2009-07-15

引用本文:

吴刚强;郎中敏;.富氢中CO选择氧化CuO-CeO_2催化剂性能的研究[J]. 化学工业与工程, 2009,26(4): 303-307

WU Gang-qiang 1,2,LANG Zhong-min1.Catalytic Property of CuO-CeO_2 Catalyst for CO Selective Oxidation in H_2-Rich Streams[J]. Chemcial Industry and Engineering, 2009,26(4): 303-307

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