Comprehensive recovery and utilization method for exhaust gas

A comprehensive method and tail gas recovery technology, applied in separation methods, chemical instruments and methods, applications, etc., can solve environmental pollution and other problems, achieve the effects of reducing air pollution, increasing agricultural and forestry output, and promoting environmental protection
CN1800715AInactive Publication Date: 2006-07-12ๆŽๅฟ—ๆ’
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ๆŽๅฟ—ๆ’
Publication Date
2006-07-12
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a tail gas recycle and integrated utilization method, which prepares the smoke of coal boiler via temperature decreasing, de-rusting, dry method or wetting desulfuration denitration method, and finished desulfuration denitration into gas, liquid and solid carbon dioxide product to apply agriculture and forest.
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Description

Technical field

[0001] The invention relates to a comprehensive method for tail gas recovery and utilization, in particular to a comprehensive method for recovery and utilization of coal-fired boiler tail gas. Background technique

[0002] At present, the known coal-fired boiler tail gas treatment adopts dry or wet desulfurization and denitrification technology, and the dry desulfurization rate is about 85%, and the wet desulfurization rate is about 90%. 2 and NO X The concentration of the main pollutants does not exceed the standard, and the induced air volume of the induced draft fan is increased, which not only does not reduce the SO 2 The total amount of emissions, and a large amount of oxygen-enriched flue gas, coal due to insufficient combustion, 8-10% unburned coal in the slag, and increased air preheating costs, resulting in new waste of resources and other issues, while Carbon dioxide produced by combustion (abbreviated as CO 2 ) are all discharged into the air, ...

Claims

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