Non-noble metal catalyst used for catalytic combustion of PTA exhaust gas and preparation method thereof

Abstract

The invention relates to a non-noble metal catalyst used for catalytic combustion of a PTA exhaust gas. The catalyst is prepared by mixing CuO, MnO2 and CeO2 oxide composite particles, uniformly dispersing, and loading on honeycomb ceramic, wherein CuO, MnO2 and CeO2 are in such weight parts that a ratio of amount of substance of copper and manganese is 1 : 1 to 1 : 7, and a ratio of a total mass of the CuO and the MnO2 and a mass of the CeO2 is 1 : 3 to 1 : 19. The catalyst uses honeycomb ceramic as base, an oxygen storage material CeO2 as a coating, and non-noble metals Cu and Mn as active components. The catalyst prepared by the invention has characteristics of low raw material cost, simple preparation technology, high catalytic activity and good toxin immunity, and can realize high-efficient catalytic combustion removal for PTA exhaust gas and other industrial exhaust gas.

Description

technical field

[0001] The invention relates to a non-precious metal monolithic catalyst for catalytic combustion of PTA tail gas and a preparation method thereof, belonging to the technical field of catalytic combustion environmental protection. Background technique

[0002] Organic waste gas is a common pollutant discharged by the petrochemical industry. Organic waste gas often contains hydrocarbon compounds, oxygen-containing organic compounds, nitrogen, sulfur, halogen and phosphorus-containing organic compounds. If these exhaust gases are not treated, they will be directly discharged into the atmosphere, which will cause serious pollution to the environment and endanger human health. PTA oxidation reaction tail gas is the largest amount of harmful gas discharged from the PTA plant, and the total mass concentration of organic matter exceeds 1000 mg / m 3 , the mass concentration of bromide is about 100 mg / m 3 , the mass concentration of CO is about 5000 mg / m 3 , and...