对分析纯碳酸钙和三种白云石与CO2的循环反应特性进行实验研究.实验结果表明,分析纯碳酸钙的二氧化碳吸收能力随循环次数的增加而快速下降,当其达到一定值后基本不再变化,活性下降原因主要是由氧化钙烧结所引起;由于白云石中惰性物质氧化镁的存在而部分减缓了吸收剂的烧结,所以使白云石的循环稳定性要优于分析纯碳酸钙.
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