中文摘要：

钙循环方法被看作了有效选择之一在燃烧烟道气体捕获公司 ₂ 。基于 CaO 的吸着剂是钙循环的申请的基础并且应该受到严重锻烧条件以便获得集中的公司 ₂ 溪流。在这研究， CaO/CaZrO ₃ 吸着剂用 sol–gel 燃烧合成(SGCS ) 被综合有是的脲的方法燃料。综合吸着剂的周期的反应性能在 950   通过锻烧在一个可伸缩实验室的反应堆系统上被评估；在在 650   的纯公司 ₂ 气氛和碳酸饱和的 °C； °C 在 15%( 由卷) 公司 ₂ 。到是的 CaZrO ₃ 的 CaO 的集体比率 8:2 (指定了为 Ca ₈ Zr ₂) 在起始的周期为它的高公司 ₂ 俘获能力和碳酸饱和变换在所有综合 CaO 吸着剂之中作为最好的选择被屏蔽。然后在公司 ₂ 俘获能力的渐渐的腐烂在下列 10 个连续周期被观察，但是此后全部稳定了以后的周期。而且，焦化 Ca ₈ 在循环周期上的 Zr ₂ 被调查。与增加循环周期，毛孔山峰和吝啬的谷物焦化 Ca ₈ 转移到更大的方向的 Zr ₂ 吸着剂但是表面区域(SA ) 比率和表面分数维图形尺寸 D _s 减少了。最后，焦化 Ca ₈ Zr ₂ 被观察。最新形成的 CaCO ₃ 谷物舍入的凝块和边是在周期的碳酸饱和阶段加重了被发现。作为结果， Ca ₈ 有公司 ₂ 的 Zr ₂ 被观察仅仅在外面由 CaCO ₃ 壳的快形成限制了到外部活跃 CaO，它堵塞了在内的 unreacted CaO 的进一步的碳酸饱和。因此，足够的注意应该对碳酸饱和阶段被给予，更有效的激活措施应该被探索保证活跃 CaO 充分在扩大循环周期上焦化了的 unreacted。

英文摘要：

Calcium looping method has been considered as one of the efficient options to capture C02 in the combustion Ilue gas. CaO-based sorbent is the basis for application of calcium looping and should be subjected to the severe calcination condition so as to obtain the concentrated C02 stream. In this research, CaO/CaZrO3 sorbents were synthesized using the sol-gel combustion synthesis （SGCS） method with urea as fuel. The cyclic reaction performance of the synthesized sorbents was evaluated on a lab-scaled reactor system through calcination at 950 ℃ in a pure C02 atmosphere and carbonation at 650 ℃ in the 15% （by volume） C02. The mass ratio of CaO to CaZr03 as 8：2 （designated as CasZr2） was screened as the best option among all the synthesized CaO sorbents for its high CO2 capture capacity and carbonation conversion at the initial cycle. And then a gradual decay in the C02 capture capacity was observed at the following 10 successive cycles, but hereafter stabilized throughout the later cycles. Furthermore, structural evolution of the carbonated CasZr2 over the looping cycles was investigated. With increasing looping cycles, the pore peak and mean grain size of the carbonated CasZr2 sorbent shifted to the bigger direction but both the surface area （SA） ratio and surface fractal dimension Ds decreased. Finally, morphological transformation of the carbonated CasZr2 was observed. Agglomeration and edge rounding of the newly formed CaC03 grains were found as aggravated at the cyclic carbonation stage. As a result, carbonation of CasZr2 with C02 was observed only confined to the external active CaO by the fast formation of the CaC03 shell outside, which occluded the further carbonation of the unreacted CaO inside. Therefore, enough attention should be paid to the carbonation stage and more effective activation measures should be explored to ensure the unreacted active CaO fully carbonatPd river the extended Ioonin cycles.