Method for simultaneously desulfurizing and denitrating flue gas

A technology for desulfurization, denitrification, and flue gas, which is applied in the fields of chemical technology and gas pollutant treatment, can solve problems that have not been reported, and achieve the effect of simple operation, high efficiency, and large amount of flue gas treatment
CN102908883AActive Publication Date: 2013-02-06PEKING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PEKING UNIV
Publication Date
2013-02-06

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Abstract

The invention provides a method for simultaneously desulfurizing and denitrating flue gas. The method comprises the step that: a large number of active materials produced by the flue gas under ultraviolet radiation are reacted with SO2 and NOx in the flue gas so as to produce stable sulfuric acid and nitric acid which are important industrial products. The two products can be collected by an acid mist removing device, or ammonia can be introduced into the two products to produce ammonium sulfate and ammonium nitrate which are important chemical fertilizers, or calcium carbonate is sprayed into the two products to produce calcium sulfate and calcium nitrate; and then, SO2 and NOx in the flue gas are removed from the flue gas to be converted into the products with the industrial or agricultural value. The method for simultaneously desulfurizing and denitrating the flue gas is suitable for desulfurizing and denitrating the flue gas of large newly-built boilers, or reforming and applying built burning equipment, and can realize the effect of simultaneously removing SO2 and NOx.
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Description

technical field

[0001] The invention belongs to the technical fields of chemical technology and gas pollutant treatment, and in particular relates to a method for simultaneous desulfurization and denitrification of flue gas. Background technique

[0002] my country's SO in recent years 2 and NO x The situation of increasing emissions is severe, and the strengthening of SO 2 and NO x Pollutant emission control is very important. According to the "Twelfth Five-Year Plan" SO 2 and NO x Reducing the 8% and 10% binding indicators and the more stringent "Emission Standards of Air Pollutants for Thermal Power Plants" (GB13223-2011), the future trend of flue gas control will be simultaneous efficient desulfurization and denitrification.

[0003] SO 2 and NO x At the same time, efficient removal is an important and difficult point of flue gas treatment. The most widely used desulfurization and denitrification integrated equipment is not a simultaneous treatment in the strict ...

Claims

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