Fuel coal smoke low oxidation rate desulfur method

A low oxidation rate, coal-fired flue gas technology, applied in the direction of chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of reducing ammonium sulfate, increasing sulfur dioxide, etc., to reduce corrosion, prolong service life, and reduce oxidation rate effect
CN1597061AInactive Publication Date: 2005-03-23JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION
Publication Date
2005-03-23
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A low-oxidization method for desulfurizing the fume generated by burning coal includes such steps as spraying water for cooling and dusting the fume, stage-one absorption by spraying the absorbing liquid A, stage-two absorption by spraying the absorbing liquid B, spraying water for defrosting, and exhausting.
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Description

technical field

[0001] The invention belongs to the environmental protection technology, and relates to a method for recycling sulfur dioxide in flue gas of a coal-fired boiler, in particular to a method for desulfurization of coal-fired flue gas with a low oxidation rate. Background technique

[0002] The flue gas produced by coal-fired boilers contains a large amount of SO that can pollute the environment 2 , must be desulfurized before it can be discharged. Among the treatment methods of coal-fired flue gas, ammonia desulfurization is one of the main methods currently used, because ammonia desulfurization can by-produce sulfur ammonia fertilizer and high-purity SO that can be used to make sulfuric acid 2 , has a better market value, and thus can reduce desulfurization costs and even make profits.

[0003] The mechanism of ammonia desulfurization and sulfur dioxide recovery is as follows:

[0004] 1. The main reaction of desulfurization: the reaction of sulfur dioxide a...

Claims

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