The cyclic oxidative dehydrogenation of ethane to ethylene is a cleaner and less energy consuming technology than steam cracking. In previous experiments, spinel oxygen carrier (AB₂O₄) has a high lattice oxygen capacity.Therefore, in this study, the B-site element of spinel MgX₂O₄ (X=Cr, Mn, Fe) type oxygen carrier was changed to explore the research properties of CL-ODH of ethane.The results show that MgCr₂O₄ achieves 44.24% conversion and 36.2% yield at 625℃.The conversion rate of MgMn₂O₄ is 33.86% and the yield is 70.52% at 750℃, and there is room for further improvement.

Ethane, chemical looping, oxidative dehydrogenation, oxygen carrier, spinel