Design of a cryogenic CO2 capture system based on Stirling coolers
Design of a cryogenic CO2 capture system based on Stirling coolers
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DOI：
10.1016/j.ijggc.2012.01.004
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发表时间：
2012-03
影响因子：
3.9
通讯作者：
Chunfeng Song;Y. Kitamura;Shuhong Li;K. Ogasawara
中科院分区：
文献类型：
--
作者：
Chunfeng Song;Y. Kitamura;Shuhong Li;K. Ogasawara
本研究开发了一种基于斯特林制冷机的CO2低温捕集系统。通过所设计的捕获系统，可以根据凝华和凝华的不同实现有效的分离。在捕集过程中，H2O和CO2在捕集系统的不同部位发生冷凝和升华，而剩余气体流出时性质没有发生变化。值得注意的是，在该方法中，CO2可以以固体形式捕获，从而避免了其他方法中使用溶剂和考虑压力。此外，两个重要的参数（斯特林冷却器的温度和气流的流速）进行了详细的研究。结果表明，在最佳温度和流量条件下，深冷过程CO2回收率可达96%，表明该系统能有效捕集CO2气体。
In this research, a novel cryogenic CO2capture system based on Stirling coolers has been developed. By the capture system designed, an effective separation can be achieved according to differences in condensation and desublimation. From the capture process, H2O and CO2can condense and desublimate at different parts of the capture system, while residual gas flows out without properties change. It is noteworthy that in the process, CO2can be captured in a solid form, thus avoiding the use of the solvents and consideration of pressure in other methods. Furthermore, two significant parameters (the temperature of Stirling coolers and the flow rate of the gas stream) were investigated in detail. The results showed that under the optimal temperature and flow rate, CO2recovery of the cryogenic process can reach 96%, which demonstrated that the system can capture CO2gas effectively.