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Behavior of CaO/CuO based composite in a combined calcium and copper chemical looping process / Changlei Qin in Industrial & engineering chemistry research, Vol. 51 N° 38 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12274–12281 Titre : Behavior of CaO/CuO based composite in a combined calcium and copper chemical looping process Type de document : texte imprimé Auteurs : Changlei Qin, Auteur ; Junjun Yin, Auteur ; Wenqiang Liu, Auteur Année de publication : 2012 Article en page(s) : pp. 12274–12281 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Chemical  looping  combustion Résumé : Integration of chemical looping combustion into calcium looping is an attractive approach to solving the problem of energy requirement for the regeneration of CaO-based sorbent. In this work, the behavior of MgO supported CaO/CuO composite in the new combined process (CaCuCL) was investigated. The composite was prepared via a simple wet mixing method and measured via a thermogravimetric analyzer for its chemical performance. It appears that the component of Cu/CuO has a significant influence on the cyclic performance of CaO, which is probably caused by the “wrapping” of Cu/CuO outside, due to its low melting point. However, this negative effect can be greatly reduced by using appropriate operating conditions in the successive reactions. When tested for 68 cycles, all synthetic sorbents showed good reactivity and stability of the Cu/CuO component, although loss-in-capacity of CaO was stilled observed. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300677s [article] Behavior of CaO/CuO based composite in a combined calcium and copper chemical looping process [texte imprimé] / Changlei Qin, Auteur ; Junjun Yin, Auteur ; Wenqiang Liu, Auteur . - 2012 . - pp. 12274–12281. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12274–12281 Mots-clés : Chemical  looping  combustion Résumé : Integration of chemical looping combustion into calcium looping is an attractive approach to solving the problem of energy requirement for the regeneration of CaO-based sorbent. In this work, the behavior of MgO supported CaO/CuO composite in the new combined process (CaCuCL) was investigated. The composite was prepared via a simple wet mixing method and measured via a thermogravimetric analyzer for its chemical performance. It appears that the component of Cu/CuO has a significant influence on the cyclic performance of CaO, which is probably caused by the “wrapping” of Cu/CuO outside, due to its low melting point. However, this negative effect can be greatly reduced by using appropriate operating conditions in the successive reactions. When tested for 68 cycles, all synthetic sorbents showed good reactivity and stability of the Cu/CuO component, although loss-in-capacity of CaO was stilled observed. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300677s