二氧化碳低温凝华捕集的实验研究

Experiment investigation on carbon dioxide capture by cryogenic desublimation

针对现有CO_2低温凝华数据不足,低温凝华法碳捕集实验缺乏以及对气固分离的换热器研究很少的现状,采用可视化方法进行低温凝华法碳捕集的实验研究,对于不同初始浓度和流量下N_2/CO_2二元系中CO_2在换热器中的温度分布及其凝华晶体生长形态进行了实验,获得了不同的CO_2凝华状态信息。

Carbon capture and storage receives extensive concern in the background of global warming. Because of the huge costs and complex processes of traditional carbon capture technology in industrial appli- cations, a novel carbon capture technology by cryogenic desublimation,which can be used for industrial cold recovery, has been studied in this article. Since the existing cryogenic carbon dioxide desublimation data is insufficient, a low temperature visualized experiment platform was setup to test and record temperature dis- tributions and crystalline morphology in the heat exchanger for N2/CO2 binary system in different concentra- tions and flow rates. And different carbon dioxide desublimation states are recorded.