Separation of CO2 from flue gases using hydroquinone clathrate compounds
Separation of CO2 from flue gases using hydroquinone clathrate compounds
复制标题
使用对苯二酚笼形化合物从烟气中分离二氧化碳
DOI：
10.1007/s11814-015-0101-3
复制
发表时间：
2015
影响因子：
2.7
通讯作者：
Ji
中科院分区：
文献类型：
--
作者：
Jong;Pratik Dotel;Jeasung Park;Ji
对在10 ~ 50 bar压力范围内与不同组成的（CO2+N2）气体混合物反应的对苯二酚（HQ）样品进行了光谱分析和元素分析。结果表明，虽然CO2和N2都可以与HQ反应形成笼形化合物，但CO2的选择性高于N2。特别地，在20巴或更高的操作压力下，笼形化合物中的CO2含量为85摩尔%或更高，而与进料气体组成无关。此外，如果采用基于包合物的两步方法，则可以从烟道气中回收93摩尔%或更高比率的CO2。因此，本文所述的笼形化合物可用作烟道气中CO2的CO2分离/回收介质。
Hydroquinone (HQ) samples reacting with (CO2+N2) gas mixtures with various compositions at pressures ranging from 10 to 50 bar are analyzed using spectroscopic methods and an elemental analyzer. The results indicate that while both CO2and N2can react with HQ to form clathrate compounds, CO2has higher selectivity than N2. In particular, at an operating pressure of 20 bar or greater, the CO2content in the clathrate compound is 85mol% or higher regardless of the feed gas composition. Moreover, if a two-step clathrate-based process is adapted, CO2at a rate of 93 mol% or higher can be recovered from flue gases. Thus, the clathrate compound described here can be used as a CO2separation/recovery medium for CO2in flue gases.