CO adsorption on activated carbon-supported Cu-based adsorbent prepared by a facile route
CO adsorption on activated carbon-supported Cu-based adsorbent prepared by a facile route
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DOI：
10.1016/j.seppur.2010.09.022
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发表时间：
2010-12-01
影响因子：
8.6
通讯作者：
Li, Ruifeng
中科院分区：
文献类型：
--
作者：
Ma, Jinghong;Li, Li;Li, Ruifeng
以氯化铜（II）和羧酸铜（II）水溶液浸渍活性炭（AC），制备了cu基CO吸附剂。考察了制备条件对吸附剂CO吸附能力的影响。通过XRD和77K下N-2吸附对吸附剂的表征表明，预活化后铜盐在活性炭上完全转化为高度分散的CuCl， CO与Cu(I)配合进行化学计量吸附。所制得的吸附剂对CO具有较高的吸附选择性和较好的吸附解吸可逆性，且吸附热小，在变压吸附法从含CO2、CH4和N-2的混合气体中选择性分离CO方面具有广阔的应用前景。(C) 2010 Elsevier B.V.版权所有
Cu-based adsorbents for CO adsorption were efficiently prepared by impregnation activated carbon (AC) with aqueous solution of copper (II) chloride and copper (II) carboxylate. The effects of preparation condition on CO adsorption capacity of the adsorbents were investigated. Characterization of the adsorbents by XRD and N-2 adsorption at 77K showed that cupric salts were completely converted to highly dispersed CuCl on activated carbon after pre-activation, resulting in the stoichiometric adsorption by the coordination of CO with Cu(I). The resulting adsorbents displayed high adsorption selectivity and good adsorption-desorption reversibility for CO with the small adsorption heat, and exhibited broad prospects for the selective separation of CO from mixture gas containing CO2, CH4 and N-2 by pressure swing adsorption. (C) 2010 Elsevier B.V. All rights reserved.