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Preparation method of wet complexing iron desulfurizer

A complex iron method and complex iron technology are applied in the field of acid gas purification, which can solve the problems of slow reaction rate, high desulfurization cost, and poor desulfurization liquid stability.

Pending Publication Date: 2021-07-06
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the purpose of the present invention is to wet complex iron desulfurizer, so that the newly synthesized desulfurizer can efficiently remove sulfide from the gas mixture, which can not only reduce equipment corrosion, but also solve the problem of desulfurization in the desulfurization process. Poor stability of desulfurization liquid, high cost of desulfurization, slow reaction rate, etc.

Method used

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  • Preparation method of wet complexing iron desulfurizer

Examples

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Effect test

Embodiment 1

[0019] Take 100mL of deionized water, 97g of ferric chloride, and 2mL of sulfuric acid. First, slowly dissolve 97g of ferric chloride into 100mL of deionized water, and then keep stirring. The reaction is exothermic, so it must be dissolved slowly and kept stirring. After completely dissolving, let stand to room temperature. Then take by weighing 100 g of EDTA, 200 mL of ammonia water, and dissolve while stirring in the fume hood. After the EDTA is completely dissolved, the solution is clear. At this time, slowly add the ferric chloride solution in the EDTA ammonia solution, and constantly stir during the dissolution process to prevent precipitation. form. Finally, polyaspartic acid, glycerin, and sorbitol stabilizer are added into the solution, and the solution obtained after stirring to completely dissolve is a reddish-brown complex iron desulfurizer solution, which has strong desulfurization performance.

Embodiment 2

[0021] Take 100mL of deionized water, 97g of ferric chloride, and 2mL of sulfuric acid. First, slowly dissolve 97g of ferric chloride into 100mL of deionized water, and then keep stirring. The reaction is exothermic, so it must be dissolved slowly and kept stirring. After completely dissolving, let stand to room temperature. Then take by weighing 100 g of EDTA, 200 mL of ammonia water, and dissolve while stirring in the fume hood. After the EDTA is completely dissolved, the solution is clear. At this time, slowly add the ferric chloride solution in the EDTA ammonia solution, and constantly stir during the dissolution process to prevent precipitation. form. During the stirring process, polyaspartic acid, glycerin, and sorbitol stabilizer are added in batches, and the solution obtained after the stirring is completely dissolved is a reddish-brown complex iron desulfurization agent solution, which has strong desulfurization performance.

Embodiment 3

[0023] Take 100mL of deionized water, 97g of ferric chloride, and 2mL of sulfuric acid. First, slowly dissolve 97g of ferric chloride into 100mL of deionized water, and then keep stirring. The reaction is exothermic, so it must be dissolved slowly and kept stirring. In addition, add a part of stabilizer. After completely dissolving, let stand to room temperature. Then weigh 100 g of EDTA and 200 mL of ammonia water and dissolve them in the fume hood while stirring. Stir constantly to prevent the formation of a precipitate. During the stirring process, polyaspartic acid, glycerin, and sorbitol stabilizer are added in batches, and the solution obtained after the stirring is completely dissolved is a reddish-brown complex iron desulfurization agent solution, which has strong desulfurization performance.

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Abstract

The invention discloses a technology for removing sulfides from a gas mixture by an improved complex iron method, and provides a multi-component combined desulfurization solution and a corresponding desulfurization process thereof. The complex iron desulfurizer solution synthesized by the process has the advantages of good desulfurization performance, safe equipment operation, good operation flexibility, simple preparation method and the like.

Description

【Technical field】 [0001] The invention discloses a preparation method of a complex iron desulfurizer by multi-component wet desulfurization, which belongs to the field of acid gas purification. The complex iron desulfurizer solution synthesized by the invention has the advantages of good desulfurization performance, safe equipment operation, good operation flexibility, simple preparation method and the like. 【Background technique】 [0002] Due to the enhancement of people's awareness of environmental protection, and it is related to the national economy and people's livelihood, desulfurization has become an important section of the chemical industry. Desulfurization analysis is to ensure the normal progress of the desulfurization process. Real-time monitoring of key parameters such as gas components, desulfurization liquid, catalyst concentration, and suspended sulfur in the production process has become an indispensable and important part of desulfurization industrial produ...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/48
CPCB01D53/78B01D53/48
Inventor 齐建光沈媛媛孟凡庆李鑫王英龙
Owner QINGDAO UNIV OF SCI & TECH
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