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›› 2007, Vol. 7 ›› Issue (4): 807-811.

• 材料工程专栏 • 上一篇    下一篇

用于低温干法催化氧化所吸附苯酚的CuO-CeO2/AC吸附-催化剂

雷智平,刘振宇,李秉正   

  1. 中国科学院山西煤炭化学研究所煤转化国家重点实验室
  • 出版日期:2007-08-20 发布日期:2007-08-20

CuO-CeO2/AC Adsorption Catalyst for Catalytic Dry Oxidation of Adsorbed Phenol at Low Temperatures

LEI Zhi-ping,LIU Zhen-yu,LI Bing-zheng   

  1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences
  • Online:2007-08-20 Published:2007-08-20

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被引次数

17

摘要： 对CuO-CeO2/AC(活性炭载氧化铜和氧化铈)吸附-催化剂低温干法催化氧化所吸附苯酚的行为进行了研究. 结果表明，CeO2的引入促进了CuO/AC对吸附苯酚的低温催化氧化活性，苯酚初始催化氧化温度降低约30℃；连续吸附-催化氧化循环过程中的苯酚吸附量平均提高6%左右，苯酚脱附量平均减少77%. 铈掺杂的促进作用可能在于提高了表面化学吸附态的氧含量，进而减少了催化氧化过程中在吸附-催化剂表面形成的残留物量.

关键词: 干法催化氧化, 炭基催化剂, 炭基吸附剂, 苯酚

Abstract: An activated carbon (AC) supported copper and cerium oxide adsorption catalyst (CuO-CeO2/AC) was studied for catalytic dry oxidation of adsorbed phenol at low temperatures. The results show that the addition of CeO2 to CuO/AC significantly promotes its catalytic activity for phenol oxidation. The initial oxidation temperature of the adsorbed phenol is lowered by 30℃, the phenol adsorption capacity is increased by about 6%, the desorption of phenol in oxidation is reduced by about 77% and the residues formed in the oxidation are reduced. The effect of CeO2 on the process would be attributed to its oxygen that can be used for oxidation of phenol.

Key words: catalytic dry oxidation, carbon-supported catalyst, arbon-based sorbent, phenol