Patent ID: 7070752

Claim:
A method for converting hydrocarbons by cyclic auto-thermal reforming into hydrogen and carbon monoxide by contacting alternately air and a hydrocarbon/steam mixture with a composition comprising a supported perovskite-type oxide having a general formula A x A′ x′ B y B′ y′ O 3−δ , wherein: A is an ion of a metal of Group IIIa or IIIb of the periodic table of elements or mixtures of these; A′ is an ion of a metal of Groups Ia or IIa of the periodic table of elements or mixtures of these; B and B′ are ions of a d-block transition metal of the periodic table of elements or mixtures of these; x, x′, y and y′ range from 0 to 1.05; 0.95<x+x′<1.05; 0.95<y+y′<1.05; and δ is the deviation from ideal oxygen stoichiometry; wherein said supported perovskite-type oxide provides oxygen storage capability.