Wet oxidation catalyst for alkaline residue treatment and preparation method thereof

The invention discloses a wet oxidation catalyst for alkaline residue treatment and a preparation method thereof, and belongs to the technical field of catalysts, the wet oxidation catalyst for alkaline residue treatment comprises the following components by mass: 0.5-1.9% of nitrogen element, 0-5% of active component, and the balance of carrier; the carrier is modified activated carbon; the active component is loaded on the carrier, and the active component is at least one of sodium, iron and cobalt. The wet oxidation catalyst takes sodium, iron or cobalt as an active component, so that the use cost can be effectively reduced, the use of noble metals can be avoided, meanwhile, the activity of the catalyst can be effectively improved through the loading of sodium, iron or cobalt, organic matters and sulfur-containing compounds in the oil refining alkaline residues can be degraded into CO2, H2O and SO4 < 2->, and the catalyst is high in nitrogen content and low in cost. Therefore, COD in the oil refining alkal