Method and apparatus for combined removing sulfur-dioxide and nitrogenoxide by mixed solution

A technology of mixed solution and sulfur dioxide, which is applied in the desulfurization and denitrification device, flue gas simultaneous desulfurization and denitrification field, can solve the problems of high energy loss, corrosion in the furnace, etc., and achieve the effect of high overall efficiency, low operating cost and no secondary pollution
CN101073741AInactive Publication Date: 2007-11-21SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2007-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention is concerned with a method to remove sulfur dioxide and compounds of nitrogen and oxygen by using a kind of mixed solution. Drop the temperature of gas after moving dust to 100 to 110 degree, and contact with carbamide / ammonia mixed solution with additive to absorb sulfur dioxide and compounds of nitrogen and oxygen, then blow compressed air into the solution to get ammonia sulfate. Remove the solution and make gas contact with carbamide solution with additive, then let out after reaction. It can adopt double level spray or column reactor to coupling the first and second reactors into a same container and separate double lever reactor with clapboard, this predigests the connecting structure of double lever reactor and reduce the height of cleaning equipment and heat lost.
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Description

technical field

[0001] The invention belongs to the technical field of atmospheric environmental protection, and relates to a method and a desulfurization and denitrification device for simultaneous flue gas desulfurization and denitrification, in particular to a method and device for jointly removing sulfur dioxide and nitrogen oxides by using a urea / ammonia water / additive mixed solution. technical background

[0002] Sulfur dioxide and nitrogen oxides are the most influential gaseous pollutants in the air pollutants, which are extremely harmful to the human body, the environment and the ecological system. With the increasingly stringent environmental protection requirements, NO X and SO 2 The issue of emissions is getting more and more attention. Sulfur dioxide and nitrogen oxides are mainly derived from the combustion process of coal, petroleum and other petrochemical fuels, as well as the flue gas emissions from the roasting and smelting of ores. It is difficult to man...

Claims

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