Wet oxidation catalyst for treating oil refining alkaline residue as well as preparation method and application thereof

Abstract

The invention discloses a wet oxidation catalyst for treating oil refining alkali residue as well as a preparation method and application thereof. The wet oxidation catalyst for treating the oil refining alkali residue is composed of 95-99% by mass of a carrier and 1-5% by mass of an active component, wherein the carrier is a metal organic framework material UiO-66 with a hierarchical pore structure, the active component is at least one of copper, manganese, cerium, zirconium and iron, and the active component is in the presence of a metal simple substance, a metal sulfide or a metal oxide. The wet oxidation catalyst overcomes the defect that a traditional aluminum oxide or molecular sieve catalyst is not stable under an alkaline condition; the catalyst has micropores and mesoporous distribution, and the carrier with hierarchical pore distribution is beneficial to molecular diffusion in the reaction process, the catalytic oxidation efficiency of the reaction is greatly improved, the adsorption of the active component is facilitated, and the catalytic performance is remarkably improved; the active component is loaded on the UiO-66 through chemical bond or hydrogen bond action, and the dissolution of the active component is reduced.

Description

technical field [0001] The invention relates to a wet oxidation catalyst for treating oil refining alkali slag, a preparation method and application thereof, and belongs to the field of wet oxidation catalysis. Background technique [0002] Wet oxidation technology (Wet Oxidation, WO) is an advanced environmental protection technology for treating high-concentration refractory industrial wastewater. It uses oxygen or air as an oxidant to oxidize and degrade organic matter in the liquid phase. Phosphorus in organic phosphorus compounds in this process It is decomposed into inorganic phosphorus, nitrogen in organic nitrogen compounds is decomposed into ammonia nitrogen, and refractory organic matter is decomposed into small molecules that are easy to biochemically compound, and the biodegradability of wastewater COD is degraded at the same time. Wet oxidation technology has a high removal rate of organic matter, significantly improved biodegradability of effluent, and low seco...

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Problems solved by technology

[0004] In order to solve the defects in the prior art that the carrier is easy to decompose, etc., the present invention provides a wet oxidation catalyst for treating oil refinery alkali residue, its preparation method and its application

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