Desulfurization method, device and system

A technology of desulfurization device and desulfurizer, which is applied in the field of desulfurization system, can solve the problems of polluted environment and low desulfurization efficiency, and achieve the effects of wide application, convenient treatment and avoiding difficult wastewater treatment

Active Publication Date: 2021-11-16
德微科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing desulfurization methods have low desulfurization efficiency and are limited by the desulfurization environment, such as only suitable for low temperature, low space velocity and high water vapor concentration, or the secondary treatment of solid waste formed after desulfurization will pollute the environment.

Method used

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  • Desulfurization method, device and system
  • Desulfurization method, device and system
  • Desulfurization method, device and system

Examples

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preparation example Construction

[0047] Taking activated carbon as an example of a porous material carrier, the preparation method of the solid desulfurizer according to the embodiment of the present invention includes the following steps:

[0048] (a) take by weighing the iron source that contains sulfate radical, stabilizer and organic complexing agent and dissolve in water to obtain lysate, stir lysate and constantly add pH adjusting agent in lysate during stirring, to make complexed iron solution ;

[0049] (b) Activated carbon and complexed iron solution are placed in a sugar coating machine or a double-cone rotary macerating machine to roll, so that the complexed iron solution is absorbed by activated carbon to obtain loaded activated carbon; and

[0050] (c) Take out the loaded activated carbon and put it into a sealed bag and dry the loaded activated carbon to obtain a solid desulfurizing agent.

[0051]Wherein, the activated carbon and the complex iron solution are placed in a sugar coating machine ...

example 1

[0055] First, prepare 1000L (liter) complex iron ion concentration of 0.03mol / L (mole per liter) complex iron solution, specifically: weigh 6.7Kg (kg) of sorbitol, 24Kg of disodium EDTA and ferrous sulfate Dissolve 10Kg in 1000L deionized water to form a solution, stir the solution for 12 hours, make the internal raw materials fully contact and oxidize ferrous ions, add sodium carbonate to the solution continuously during the stirring period to adjust the pH value of the solution, and make the complex iron solution The final pH value of the solution was 9.2, and a deep red solution was obtained, namely complex iron solution.

[0056] Then, take by weighing 100Kg and the gac of 60% water absorption rate, it is poured into sugar-coating machine, and to gac spraying or the complex iron solution (0.03mol / L) that soaks 60Kg above-mentioned preparations, control sugar-coating machine to turn and roll 10 ~ After 30 minutes, all the complex iron solution is completely absorbed by the ...

example 2

[0058] First, prepare 1000L of complexed iron solution with a complexed iron ion concentration of 0.03mol / L, specifically: weigh 6.7Kg of sorbitol, 24Kg of disodium EDTA and 15.1Kg of ferrous ammonium sulfate in 1000L of deionized water, stir Dissolve the solution for 12 hours to fully contact the internal raw materials and oxidize ferrous ions. During the stirring period, add sodium carbonate to the solution to adjust the pH value of the solution, so that the final pH value of the complex iron solution is 9.2, and the deep red solution is obtained. Complex iron solution.

[0059] Then, take by weighing 100Kg and the gac of 60% water absorption rate, it is poured into sugar-coating machine, and to gac spraying or the complex iron solution (0.03mol / L) that soaks 60Kg above-mentioned preparations, control sugar-coating machine to turn and roll 10 ~ After 30 minutes, all the complex iron solution is completely absorbed by the activated carbon to obtain loaded activated carbon, ta...

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Abstract

The embodiment of the invention provides a desulfurization method, device and system. The desulfurization method comprises the following steps that: to-be-desulfurized gas containing hydrogen sulfide and oxygen is introduced from a desulfurization gas inlet to one side of a catalyst bed layer loaded in a desulfurization device, wherein the catalyst bed layer comprises a solid desulfurization agent, the solid desulfurization agent comprises a porous material carrier and complex iron ions loaded on the pore wall of the porous material carrier, and the breakthrough sulfur capacity of the solid desulfurization agent is 15%-35%; the complex iron ions loaded on the pore wall of the porous material carrier and hydrogen sulfide are subjected to a redox reaction to generate elemental sulfur and complex ferrous ions, the complex ferrous ions are oxidized and regenerated into complex iron ions through oxygen, and desulfurized mixed gas is obtained; and the desulfurized mixed gas is discharged from a desulfurization gas outlet, formed in the other opposite side of the catalyst bed layer, of the desulfurization device. According to the embodiment of the invention, a desulfurization-regeneration cycle can be realized in the desulfurization process of oxidizing H2S into elemental sulfur, and the desulfurization efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of gas purification and environmental protection, in particular to a desulfurization method, a desulfurization device and a desulfurization system. Background technique [0002] Raw material gases such as blast furnace gas (also known as blast furnace gas) or coke oven gas (also known as coke oven gas) are produced in iron and steel smelting, coal chemical industry and other production processes, which contain hydrogen sulfide (H 2 S) gases, even organic sulfides (such as carbonyl sulfide, which produce H after hydrolysis 2 S), high concentration of H 2 The existence of S not only pollutes the environment, corrodes pipeline equipment, and affects product quality, but also causes catalyst poisoning and deactivation in subsequent process production, so H in the gas phase is removed 2 S is a very important process. However, the existing desulfurization methods have low desulfurization efficiency and are limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/34C10K1/00
CPCC10K1/34C10K1/004
Inventor 刘时球
Owner 德微科技有限公司
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