Nitrogen oxide oxidizing catalyst and preparation method of nitrogen oxide oxidizing catalyst

A technology of nitrogen oxides and catalysts, which is applied in the field of catalysts for oxidation and removal of nitrogen oxides. It can solve the problems of poor activity, high cost, and high energy consumption in the field of preparation.
CN102553573AInactive Publication Date: 2012-07-11INST OF PROCESS ENG CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF PROCESS ENG CHINESE ACAD OF SCI
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a catalyst for purifying nitrogen oxide. In the presence of oxygen, conversion from nitrogen oxide (such as NO, N2O and the like) to nitrogen dioxide can be realized at lower temperature. The catalyst is prepared by a coprecipitation method or a soaking method and the main active component of the catalyst is manganese oxide. The catalyst is suitable for catalytic oxidation of nitrogen monoxide in flue gas and then integrated control of desulfurization and denitrification is realized. The catalyst is applied to a purification test of simulated flue gas with NO concentration of 200ppm, the conversion from the NO to the NO2 can be realized at lower temperature, and the NO2 is fed into a desulfurizing tower for further reacting with a desulfurizing agent so as to realize removal of nitrogen oxides in flue gas. The catalyst has remarkable effect in flue gas denitrification of coal-fired industrial boilers, and has better practical value and economic benefit.
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Description

technical field

[0001] The invention relates to a method for removing nitrogen oxides, in particular, the invention relates to a catalyst for oxidatively removing nitrogen oxides, a preparation method thereof, and an application thereof. Background technique

[0002] Nitrogen oxides (NO x ) is one of the main pollutants causing air pollution, mainly from the combustion of fuel. NO x It can participate in the formation of acid rain and photochemical smog, which is extremely harmful to human health and the environment. With the development of the economy, people's awareness of environmental protection and health has gradually increased. x Emission requirements are becoming more and more stringent. Therefore, seeking reasonable and effective NO x The advanced control technology has very important practical significance and economic benefits. NO x The control methods mainly include pre-combustion control (fuel denitrification technology, etc.), combustion process control ...

Claims

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