Ammonia low-temperature selective catalytic oxidation catalyst composition as well as preparation method and application thereof

Abstract

The invention belongs to the field of catalysts, relates to the field of ammonia low-temperature catalysis, and particularly relates to an ammonia low-temperature selective catalytic oxidation catalyst composition which takes aluminum oxide as a carrier, copper sulfide as a base membrane and copper-silver as a composite catalytic membrane, and provides a preparation method and application of the catalyst composition. According to the invention, a catalytic system consisting of silver and copper on the surface has excellent capability of adsorbing oxygen and ammonia gas, so that the reaction is promoted to a certain extent, and the reaction efficiency is improved.

Description

technical field

[0001] The invention belongs to the field of catalysts, relates to the field of ammonia low-temperature catalysis, and in particular relates to an ammonia low-temperature selective catalytic oxidation catalyst composition and a preparation method and application thereof. Background technique

[0002] Ammonia is a colorless gas with a strong pungent odor, which not only endangers public health, but also poses a threat to the environment and ecosystem. Therefore, ammonia has been included in my country's odor pollutant emission standards and has become a corporate Items under key control. Ammonia is mainly produced in petrochemical, fertilizer, landfill, pharmaceutical wastewater, food industry and other industries. There are many sources of pollution and large emissions. The traditional ammonia removal methods mainly include absorption method, adsorption method, biological filtration method and incineration method, etc., but these methods have problems such as...