Abstract: Cubased oxygen carriers with different binders(ZrO2，TiO2，SiO2)were prepared by mechanical mixing method and solgel method. The effects of preparation parameters(different binders， mass ratio of binder， sintering temperature and time)on the reduction and oxidation reactivity of oxygen carriers were investigated by thermogravimetric analyzer. The results showed that the reactivity of the three types oxygen carriers increases in the order of Cu/Zr>Cu/Ti>Cu/Si. The oxygen carriers have the better reduction and oxidation reactivity with the higher content ratio of binders. The reduction reactivity decreases with the increasing of sintering temperature， while the effect of sintering temperature on the oxidation reactivity is little. The effects of sintering time both on reduction and oxidation reactivity are little， too. For Cu/Zr and Cu/Ti oxygen carriers， the solgel method is better than mechanical mixing. However， for Cu/Si oxygen carrier， the mechanical mixing method is better than solgel.

Key words: chemical looping oxygen production, Cubased oxygen carriers, preparation parameters, reduction reactivity, oxidation reactivity