Feasibility Study for Copper/Zirconium Oxides as Oxygen Carrier in Chemical Looping Air Separation (CLAS)
Chemical looping air separation (CLAS) is a new and energy saving method to separate oxygen from air.In this work,oxygen carrier was prepared by mechanical mixing method using CuO as active phase and ZrO2 as binder.XRD and SEM analysis indicate that ZrO2 cannot react with CuO at high sintering temperature and oxygen carders prepared by this method are porous.Reactivity tests of oxygen carrier were investigated in STA409PC thermogravimetric analyzer using both temperature-programmed and isothermal thermogravimetry.The results show that the copper-based oxygen carder has the capability of releasing oxygen when the temperatures higher than 850℃ in nitrogen atmosphere.The reaction rates increase greatly as the temperature increases.Moreover,the oxygen carder can keep high reactivity after several cycles.The copper/zirconium oxides as oxygen carder were found to be suitable for CLAS process.
Chemical looping air separation Chemical looping combustion Copper oxide Zirconium oxide Oxygen carrier
Kun Wang Qingbo Yu QinQin Jiuchong Li
School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110819, Peoples Republic of China
国际会议
北京
英文
479-483
2012-12-16（万方平台首次上网日期，不代表论文的发表时间）