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Steel smelting gas desulfurization and sulfur recycling device system and method

A technology for iron and steel smelting and desulfurization equipment, applied in chemical instruments and methods, sulfur compounds, separation methods, etc., can solve the problems of undisclosed desulfurization operations, etc., achieve the effect of improving desulfurization efficiency, reducing the number of additions, and realizing recycling

Inactive Publication Date: 2021-02-05
NANJING WEIHENG EXPERIMENTAL EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, whether the method and device are also applicable to the desulfurization operation of flue gas has not been disclosed

Method used

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  • Steel smelting gas desulfurization and sulfur recycling device system and method
  • Steel smelting gas desulfurization and sulfur recycling device system and method
  • Steel smelting gas desulfurization and sulfur recycling device system and method

Examples

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Effect test

Embodiment 1

[0069] This embodiment provides a figure 1 The shown iron and steel smelting gas desulfurization and sulfur resource utilization device system, the iron and steel smelting gas desulfurization and sulfur resource utilization device system includes a desulfurization device 1 , a regeneration device 2 , an acid production device 3 , a modification device 4 and a hydrolysis device 5 .

[0070]The desulfurization device 1 described in this embodiment is provided with shaped activated carbon c for desulfurization; the regeneration device 2 is used to regenerate the deactivated shaped activated carbon c in the desulfurization device 1, and the sulfur-containing material f generated during regeneration enters the acid production device 3 , the sulfuric acid g is obtained by the acid plant 3; the regenerated fine particles h obtained by the regenerating device 2 are reused in the desulfurization device 1; the regenerated coarse particles i obtained by the regenerating device 2 enter the...

Embodiment 2

[0073] This embodiment provides a figure 1 The shown iron and steel smelting gas desulfurization and sulfur resource utilization device system, the iron and steel smelting gas desulfurization and sulfur resource utilization device system includes a desulfurization device 1 , a regeneration device 2 , an acid production device 3 , a modification device 4 and a hydrolysis device 5 .

[0074] The desulfurization device 1 described in this embodiment is provided with shaped activated carbon c for desulfurization; the regeneration device 2 is used to regenerate the deactivated shaped activated carbon c in the desulfurization device 1, and the sulfur-containing material f generated during regeneration enters the acid production device 3 , the sulfuric acid g is obtained by the acid plant 3; the regenerated fine particles h obtained by the regenerating device 2 are reused in the desulfurization device 1; the regenerated coarse particles i obtained by the regenerating device 2 enter th...

Embodiment 3

[0077] This embodiment provides a figure 1 The shown iron and steel smelting gas desulfurization and sulfur resource utilization device system, the iron and steel smelting gas desulfurization and sulfur resource utilization device system includes a desulfurization device 1 , a regeneration device 2 , an acid production device 3 , a modification device 4 and a hydrolysis device 5 .

[0078] The desulfurization device 1 described in this embodiment is provided with shaped activated carbon c for desulfurization; the regeneration device 2 is used to regenerate the deactivated shaped activated carbon c in the desulfurization device 1, and the sulfur-containing material f generated during regeneration enters the acid production device 3 , the sulfuric acid g is obtained by the acid plant 3; the regenerated fine particles h obtained by the regenerating device 2 are reused in the desulfurization device 1; the regenerated coarse particles i obtained by the regenerating device 2 enter th...

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Abstract

The invention relates to a steel smelting gas desulfurization and sulfur recycling device system and method. The device system comprises a desulfurization device, a regeneration device, an acid makingdevice, a modification device and a hydrolysis device, the method comprises the following steps: (1) removing sulfur dioxide in flue gas by utilizing formed activated carbon to obtain saturated activated carbon; (2) regenerating the saturated activated carbon obtained in the step (1) to obtain regenerated fine particles, regenerated coarse particles and a sulfur-containing material; (3) applyingthe regenerated fine particles obtained in the step (2) to flue gas desulfurization to obtain saturated fine particles; and (4) performing modification treatment on the regenerated coarse particles obtained in the step (2), and removing reducing sulfur in the coal gas to obtain saturated fine particles and saturated coarse particles. The invention provides the collaborative treatment system and process which can recycle the activated carbon adsorption catalyst and combine flue gas and coal gas desulfurization and sulfur recycling into a whole, so that the desulfurization efficiency of steel smelting gas is improved while the treatment cost is saved.

Description

technical field [0001] The invention belongs to the technical field of coal gas and flue gas desulfurization, relates to iron and steel smelting gas desulfurization, in particular to a device system and method for iron and steel smelting gas desulfurization and sulfur resource utilization. Background technique [0002] For the iron and steel smelting industry, the treatment of sulfur pollutants is the focus of various pollution controls. However, the reduction of pollutants in the existing iron and steel smelting gas mainly adopts the method of separate treatment of flue gas and coal gas, which does not pollute the entire iron and steel industry. The removal and recycling of pollutants should be managed collaboratively. For example, the sintering flue gas adopts the moving bed forming activated carbon desulfurization and denitrification process, the semi-dry desulfurization-SCR honeycomb catalyst denitrification process; the coke oven flue gas adopts the dry SDS desulfurizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04C01B17/80B01J20/30B01J20/20
CPCB01D53/04C01B17/80B01J20/30B01J20/20B01D2258/0283B01D2253/102Y02P20/584
Inventor 余剑王超高士秋杨娟李剑玲
Owner NANJING WEIHENG EXPERIMENTAL EQUIP CO LTD
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