Cyclic CO2 capture performance of carbide slag
Cyclic CO2 capture performance of carbide slag
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DOI：
10.1080/15567036.2013.820234
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发表时间：
2016-02
期刊：
影响因子：
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通讯作者：
Dengfeng Zhang;Songgeng Li;Wen-li Song;Weigang Lin
中科院分区：
文献类型：
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作者：
Dengfeng Zhang;Songgeng Li;Wen-li Song;Weigang Lin
摘要碳酸盐链法是一种很有前途的CO2捕集技术。吸附剂反应性在多次循环中的衰减是实现碳酸盐循环过程的障碍。在这项工作中，对电石渣捕集CO2的反应性和稳定性进行了研究。结果表明，与石灰石、贝壳、纯CaCO 3和Ca（OH）2相比，即使在恶劣的煅烧温度下，电石渣也表现出优越的上级CO2捕集性能。X射线衍射分析表明，电石渣在煅烧过程中生成钙铝石（Ca 12 Al 14 O 33），这是电石渣在碳酸盐成链过程中稳定性高的主要原因。
ABSTRACT The carbonate looping process is a promising technology for CO2 capture. The decay of sorbents reactivity over multiple cycles is an obstacle for realizing the carbonate looping process. In this work, the reactivity and stability of carbide slag for CO2 capture have been examined. The results show that carbide slag exhibits superior CO2 capture performance even at severe calcination temperatures in comparison with limestones, shells, pure CaCO3, and Ca(OH)2. X-ray diffraction analysis shows that there is mayenite (Ca12Al14O33) formed in the calcination step for carbide slag, which is the main reason for its high stability in the carbonate looping process.