CATALYST AND CATALYTIC OXIDATION-DEOXIDATION METHOD FOR UNSATURATED HYDROCARBON-CONTAINING GAS

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A catalyst and a catalytic oxidation-deoxidation method, which uses the catalyst, for an unsaturated hydrocarbon-containing gas. The catalyst comprises a carrier and an active component, a first additive component, and a second additive component loaded on the carrier. The active component is selected from one or more of oxides of Pt, Pd, Ru, Rh, Ag, and Ir; the first additive component comprises one or more of a rare earth metal element, a group IVB metal element, and a group VIII metal element; and the second additive component comprises one or more of an alkali metal element and an alkaline earth metal element. The deoxidation method using the catalyst obviates the need to add a reducing gas such as H2, allows a hydrocarbon to react directly with oxygen to produce CO2 and H2O, achieves the goal of deoxidating a hydrocarbon-containing exhaust gas, and prevents the generation of carbon deposits.