Enhancing the performance of CaO/CuO based composite for CO2 capture in a combined Ca-Cu chemical looping process

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[1] Qin, Changlei
[2] Yin, Junjun
[3] Luo, Cong
[4] An, Hui
[5] Liu, Wenqiang
[6] Feng, Bo
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Feng, B. (b.feng@uq.edu.au) | 1600年 / Elsevier B.V., Netherlands卷 / 228期
关键词：
In the combined calcium and copper chemical looping process; the chemical looping combustion of fuel by CuO is utilized to supply the energy required for the regeneration of calcium oxide for CO2 capture in the next cycle. However; the problem of loss-in-capacity of CaO observed in calcium looping still exists and becomes even severer in the new process. The present work synthesized a number of CaO/CuO based sorbents for the new process using selected precursors and examined the effect of thermal pre-treatment of CuO and steam addition on the cyclic reactivity of the composite sorbents. It was found that both thermal pre-treatment of CuO and steam addition were very effective in enhancing the cyclic reactivity of the composite sorbents; therefore can be potentially used to solve the problem of loss-in-capacity in the new process. © 2013 Elsevier B.V;
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