Method for removing sulfur dioxide in flue by using desulfurization liquor

A technology of sulfur dioxide and desulfurization liquid, which is applied in the field of desulfurization liquid in the flue to remove sulfur dioxide, can solve the problems of failing to meet the emission standards required by environmental protection, large additions, etc., achieve significant substantive effects, improve work efficiency, and simple preparation process Effect
CN101879402BInactive Publication Date: 2013-01-30SHANGHAI GUBAO IND
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI GUBAO IND
Publication Date
2013-01-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for removing sulfur dioxide in a flue by using desulfurization liquor. In the method, in a horizontal flue at an outlet of a boiler flue gas tail gas draught fan, the desulfurization liquor is sprayed in a direction facing gas flows to perform a reaction for removing the sulfur dioxide, and a clean flue gas after removing the sulfur dioxide is discharged into the atmosphere, wherein the desulfurization liquor comprises the following components in percentage by weight: 50 to 80 percent of a quaternary ammonium base organic substance and 20 to 50 percent of organic solvent. The method can be used in a thermal power plant and various combustion boilers using oil and coal as fuels to remove the sulfur dioxide in the flue gas, reduce over 90 percent of emission pollution, and greatly improve the working efficiency. The method has a significant substantial effect. Besides, the method has a simple preparation process of the desulfurization liquor, a low input cost and high practicability.
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Description

[technical field]

[0001] The invention relates to an improved technology for removing sulfur dioxide from exhaust gas discharged from the tail of a boiler after combustion, which can effectively remove the harmful gas of sulfur dioxide, belongs to the field of energy and environmental protection, and specifically relates to a method for removing sulfur dioxide in a flue with a desulfurization liquid agent. [Background technique]

[0002] The sulfur dioxide in the tail gas emission after the combustion of fossil raw materials combines with water vapor in the atmosphere to form sulfuric acid, forming acid rain, which is the primary pollutant. Environmental protection is becoming more and more important and urgent. The sulfur dioxide emitted by boilers after combustion accounts for 80% of the total sulfur dioxide emissions. Reducing the emission of sulfur dioxide is an important means to improve the environment and the greatest benefit for human beings to improve living conditi...

Claims

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