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Desulfurizing agent and preparation method and application thereof

A desulfurizer and binder technology, applied in the field of desulfurizer and its preparation, can solve the problems of low pore-forming efficiency, low use efficiency of desulfurizer, low utilization rate of hydrated salt, etc.

Inactive Publication Date: 2021-09-14
佛山赛因迪环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this pore-forming method has a very low utilization rate of hydrated salts. For example, the utilization rate of ferrous sulfate heptahydrate as carboxylate is only 37.7%; Decomposes water loss very well, resulting in low pore-forming efficiency; in addition, water evaporates and escapes after pore-forming, but the remaining ferrous sulfate does not have desulfurization performance but occupies the volume of desulfurizer, and stays in the desulfurizer to affect the desulfurizer service life
Therefore, the use efficiency of the existing desulfurizer is low, and the sulfur capacity of the desulfurizer is only 25-28kg (the sulfur capacity is the mass of sulfur dioxide removed per 100 kg of desulfurizer when the adsorption reaches saturation), which cannot meet the actual market demand

Method used

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  • Desulfurizing agent and preparation method and application thereof
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  • Desulfurizing agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A desulfurizer, its raw material components include: 78 parts of calcium hydroxide, 5 parts of glass fiber powder, 5 parts of grouting material, 5 parts of calcium acetate, and 7 parts of clay.

[0040] A method for preparing a desulfurizer, comprising the following steps: taking each raw material component according to the above formula, mixing, kneading, and extruding to form a columnar mud stick with a diameter of 6-10mm, and then heating it with microwaves at 300°C for 3 hours, The finished desulfurizer can be obtained by microwave drying treatment.

Embodiment 2

[0042] The difference between embodiment 2 and embodiment 1 is that embodiment 2 adds 2 parts of ferric oxide, and the remaining components and preparation process are the same as embodiment 1. Obtain the finished desulfurizer.

Embodiment 3

[0043] Embodiment 3 (when each component takes the minimum value of the limited range)

[0044] A desulfurizer, its raw material components include: 70 parts of calcium hydroxide, 3 parts of glass fiber powder, 3 parts of grouting material, 3 parts of calcium acetate, 3 parts of clay and 2 parts of ferric iron tetroxide.

[0045] A preparation method of a desulfurizer, the preparation process and the like are the same as in Example 1. Obtain the finished desulfurizer.

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Abstract

The invention belongs to the technical field of desulfurizing agent preparation, and discloses a desulfurizing agent and a preparation method and application thereof, and the desulfurizing agent comprises the following raw materials: calcium hydroxide, glass fiber powder, a grouting material and carboxylate. According to the invention, carboxylate is used as the pore-forming agent, and the utilization rate of the pore-forming agent is higher, so that the pore utilization rate of the desulfurizer is effectively improved, the adsorption pore channels of the final finished desulfurizer are greatly increased, meanwhile, the byproduct of carboxylate is carbonate which is an excellent desulfurization product. Compared with an existing hydrate, carboxylate is adopted as the pore-forming agent, the utilization rate of the pore-forming agent is higher, meanwhile, the prepared desulfurizer is higher in radial compressive strength and porosity and better in desulfurization performance. Meanwhile, the preparation method of the desulfurizing agent is easy to operate, the raw materials are easy to obtain, the cost is low, the sulfur capacity of the prepared desulfurizing agent reaches up to 58 kg, the desulfurizing agent can be effectively applied to removal of free sulfur or sulfur compounds in flue gas, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of desulfurization agent preparation, and in particular relates to a desulfurization agent and its preparation method and application. Background technique [0002] Desulfurizers generally refer to agents that remove free sulfur or sulfur compounds in fuels, raw materials or other materials; in the control and treatment of pollutants, they mainly refer to the removal of sulfur oxides (including SO 2 and SO 3 ) of the agent used. Dry desulfurization agent refers to the desulfurization agent used in the calcium-based moving bed full dry desulfurization and dust removal system. It is characterized by a porous structure based on calcium hydroxide, which can absorb SO in flue gas in an anhydrous state. 2 and SO 3 Various pollutants such as free sulfur or sulfur compounds. At the same time, calcium hydroxide can carry out acid-base neutralization with sulfur dioxide and other acid gases, so as to achieve the ...

Claims

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Application Information

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IPC IPC(8): B01D53/81B01D53/50
CPCB01D53/508B01D2251/404
Inventor 黄逸黄建起梁汝俏
Owner 佛山赛因迪环保科技有限公司