Reductive deoxygenation using a redox catalyst

A process for reductive deoxygenation of an organic compound which contains at least one oxo group with partial or complete formation of a corresponding deoxygenated compound by reaction with heterogeneous catalysis by a redox catalyst in its reduced or partially reduced form at elevated temperature in the gas phase, and reductive regeneration of the redox catalyst, comprising

• carrying out the deoxygenation continuously in a deoxygenation zone containing an outlet, in temporal or spatial alternation with the reductive regeneration of the redox catalyst, and the deoxygenation is carried out as a non-steady-state reaction, wherein the organic compound to be deoxygenated is contacted with the redox catalyst in such a way that catalyst with unused deoxygenating activity is still present at the outlet from the deoxygenation zone, wherein
• the regeneration of the redox catalyst is carried out with a gaseous reducing agent selected from the group consisting of hydrogen, carbon monoxide, hydrocarbons, ammonia, nitrogen monoxide and sulfur dioxide at elevated temperature, and
• the redox catalyst contains in its oxidized form at least one reducible oxide of the metals selected from the group consisting of Bi, V, Cr, Mn, Ti, U, Fe, Co, Pb, Mo, Ce, Sn, Sb and Cu.