Patent ID: 8435920

Claim:
A process comprising: alternately contacting an oxygen-carrying catalyst with a reducing substance, or a lower partial pressure of an oxidizing gas, and then with said oxidizing gas or a higher partial pressure of said oxidizing gas, whereby the catalyst is alternately reduced and then regenerated to an oxygenated state, wherein said oxygen-carrying catalyst comprises compounds having the formula Ce x B y B′ z B″O δ , wherein B=Ba, Sr, Ca, or Zr; B′=Mn, Co, and/or Fe; B″=Cu; 0.01≦x≦0.99; 0≦y≦0.6; 0≦z≦0.5; and 1<δ<2.2; wherein said reducing substance, when contacted with said oxygen-carrying catalyst, is converted to at least one chemical product.