Organic amine desulfurizer for cyclically absorbing and removing SO2 from flue gas and application of organic amine desulfurizer

An organic amine and SO2 technology, applied in the field of desulfurization, can solve problems such as waste, secondary pollution of sulfur resources, and low desulfurization efficiency, and achieve the effects of reducing desulfurization costs, increasing diffusion speed, and serious equipment corrosion

Inactive Publication Date: 2014-07-02
山东金瑞达环保科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problems of low desulfurization efficiency in flue gas desulfurization, resulting in secondary pollution and waste of sulfur resources, and provides a cyclic absorption and removal of SO in flue gas. 2 Organic amine desulfurizer and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 12 and 13

[0022] Examples 12 and 13: Prepare organic amine desulfurizers according to Table 2, and verify the oxidative degradation rate.

[0023] Table 2 Embodiment 12 and 13 components, proportioning and oxidative degradation rate

[0024] Example 12 Example 13 absorbent 15 parts of 2-aminoacetamide 15 parts of 2-aminoacetamide antioxidant Antioxidant 1010 2 parts Antioxidant 3114 2 parts corrosion inhibitor 3 parts benzothiazole 3 parts benzothiazole activator Tween 20 4 servings Tween 20 4 servings solvent 85 parts of deionized water 85 parts of deionized water Oxidative degradation rate (%) 0.2 0.8

Embodiment 14-16

[0025] Examples 14-16: Prepare organic amine desulfurizers according to Table 3, and verify the corrosion resistance rate.

[0026] Table 3 Example 14-16 Components, Proportions and Corrosion Resistance Rates

[0027] Example 14 Example 15 Example 16 absorbent 25 parts polyacrylamide 25 parts polyacrylamide 25 parts polyacrylamide antioxidant Antioxidant 1010 2 parts Antioxidant 1010 2 parts Antioxidant 1010 2 parts corrosion inhibitor 2 parts benzothiazole Thiobenzothiazole 2 parts Phosphine carboxylic acid 2 parts activator Tween 20 4 servings Tween 20 4 servings Tween 20 4 servings solvent 85 parts of deionized water 85 parts of deionized water 85 parts of deionized water

[0028] Corrosion resistance Example 14>Example 15>Example 16.

Embodiment 17 and 18

[0029] Examples 17 and 18: Prepare organic amine desulfurizers according to Table 4, and verify the activation efficiency.

[0030] Table 4 Embodiment 17 and 18 components, proportioning ratio and activation efficiency

[0031] Example 17 Example 18 absorbent 15 parts of hexamethylenetetramine 15 parts of hexamethylenetetramine antioxidant Antioxidant 1010 0.5 parts Antioxidant 1010 0.5 parts corrosion inhibitor Phosphine carboxylic acid 4 parts Phosphine carboxylic acid 4 parts activator Tween 40 3 servings Tween 20 3 servings solvent 85 parts of deionized water 85 parts of deionized water Activation efficiency (%) 90 95

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Abstract

The invention relates to an organic amine desulfurizer for cyclically absorbing and removing SO2 from flue gas. The organic amine desulfurizer comprises an absorbent and a solvent, wherein the absorbent is a water-soluble organic amine compound with the boiling point higher than 120 DEG C; the organic amine compound is selected from one of pyridylamine, N,N-dimethylacetamide, N,N-dimethyl-p-phenylenediamine, butyrolactam, polyacrylamide, hexamethylene tetramine, 2-aminoacetamide, 2-hydroxy-4-nitroaniline, or phenylenediamine, and also comprises an antioxidant, a corrosion inhibitor and an activator. The invention also relates to a regeneration application of the organic amine desulfurizer. The organic amine desulfurizer has a wide material resource; a processing method is simple; the organic amine desulfurizer disclosed by the invention has an efficient and high-specificity absorption capacity on sulfur dioxide when the organic amine desulfurizer is used for desulfurization; the influence of carbon dioxide in late-period sulphur dioxide recycle is eliminated; the recovery purity of the sulfur dioxide is improved. The desulfurizer can be recycled; the recycling and the low-energy-consumption regeneration of the desulfurizer are realized; the desulfurization cost is reduced; the desulfurization efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of desulfurization, and relates to a method for cyclically absorbing and removing SO in flue gas 2 Organic amine desulfurizer and its application. Background technique [0002] A large amount of sulfur dioxide emissions has aggravated the air pollution in cities. The number of cities with excessive sulfur dioxide in the atmosphere in my country is increasing. Especially in recent years, there have been a large number of severe smog in China. Industrial flue gas desulfurization has become the focus of environmental governance. At present, there are more or less problems in the wet and semi-dry desulfurization technologies commonly used in my country. For example, lime gypsum desulfurization will form a large amount of gypsum that is difficult to reuse, and the by-products are mainly discarded. Pollution, the value of magnesium sulfate by-product of magnesium oxide desulfurization is not high, and ammonia desu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
Inventor 胡勇沈春燕谷存雨刘玉涛王虎程京超
Owner 山东金瑞达环保科技股份有限公司
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