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Method for preparing solid desulfurizer

A desulfurization agent and solid-state technology, which is applied in the field of preparation of solid desulfurization agent, can solve the problems of restricting the application of activated carbon and the high price of activated carbon, and achieve the effect of reducing desulfurization operation cost, low power consumption and good safety

Inactive Publication Date: 2018-04-03
合肥果成科技有限公司
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AI Technical Summary

Problems solved by technology

The activated carbon (coke) adsorption process is widely used in dry desulfurization, but the price of activated carbon (coke) is relatively expensive, and my country's coal resources are becoming more and more scarce, which limits the application of activated carbon (coke) desulfurization technology

Method used

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Embodiment Construction

[0016] 1. Select attapulgite with better adsorption performance, remove gravel and other sundries, and let it disintegrate into smaller irregular lumps after natural weathering for one month, and let it dry naturally to let its moisture less than 10%.

[0017] 2. Preliminarily crush and sieve the weathered and dried attapulgite to make the particle size less than 1mm.

[0018] 3. Taking the total weight of attapulgite, CaO, and surfactant as 100%, add 25% of powdered CaO with a particle size of 150-200 meshes in the total weight percentage.

[0019] 4. Taking the total weight of attapulgite, CaO, and surfactants as 100%, add one or two of solid powdered alkylphenol polyoxyethylene ethers and alkylbenzenesulfonic acids accounting for 2% by weight of the total Surfactant.

[0020] 5. The weight ratio of the total weight of attapulgite, CaO, and surfactant to water is 3: 1. Add water.

[0021] 6. Stir the above mixture evenly with a mixer, leave it to age for 24 hours, and car...

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PUM

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Abstract

A method for preparing a solid desulfurizer, using attapulgite as a raw material, drying after alkali modification and activation treatment, grinding and sieving, granulating and forming, roasting and activating, and finally sieving into spherical attapulgite desulfurizer finished products . The attapulgite desulfurizer of the present invention has good alkali modification effect, spherical particle surface is rough and hard, not easily broken, large specific surface area, high porosity, good adsorption performance for sulfur dioxide, easy regeneration, simple production process, low cost, and can replace activated carbon (Coking) for flue gas desulfurization can greatly reduce the operating cost of dry desulfurization, and can also be used in sewage treatment and other occasions.

Description

technical field [0001] The invention relates to a method for activating and preparing a novel desulfurizing agent used for flue gas dry desulfurization, in particular to a method for preparing a solid desulfurizing agent. Background technique [0002] At present, the flue gas desulfurization technology is mainly based on the wet method. The common methods are limestone / lime-gypsum method, ammonia method, magnesium method and seawater method. The technology is mature and the efficiency is high, but there are high investment costs, large land occupation and water consumption. Large, easy to cause secondary pollution, equipment blockage, corrosion and other problems. The dry desulfurization process has the advantages of less water consumption, low operating cost, simple equipment, small footprint, and easy sulfur recovery, so it has become a promising flue gas purification technology. The activated carbon (coke) adsorption process is widely used in dry desulfurization, but the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/28B01J20/30B01D53/02
CPCB01J20/12B01D53/02B01D2257/30B01D2258/0283B01J20/28016
Inventor 李质玉
Owner 合肥果成科技有限公司
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