Gas desulfurization and regeneration process and device by liquid phase iron oxide powder suspension method

A technology of iron oxide powder and suspension liquid, which is applied in the field of desulfurization and achieves the effect of small footprint, safe operation of the device, and high degree of integration.

Inactive Publication Date: 2010-11-24
姜辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no process and device for removing hydrogen sulfide and other sulfides in the gas from the iron oxide powder suspension

Method used

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  • Gas desulfurization and regeneration process and device by liquid phase iron oxide powder suspension method
  • Gas desulfurization and regeneration process and device by liquid phase iron oxide powder suspension method

Examples

Experimental program
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Embodiment 1

[0034] See figure 1 , the device of the present invention comprises a desulfurization tower 16, an intermediate tank 21 at the bottom of the desulfurization tower, an iron oxide or ferrous oxide powder suspension circulation pump 15, a swirl type regeneration tank 7, a sulfur foam tank 9 at the bottom of the regeneration tank, an oxygen-containing Circulating gas blower 18, liquid level regulator 5. Wherein the top of desulfurization tower 16 can also be provided with mist-repelling layer 14, pulse-type cleaning device 19 is arranged above the mist-repelling layer, and spray pipe 10 can be provided on the sulfur foam discharge pipe 12 top of regenerator 7 central regions (according to actual situation, spray pipe It can also not be set).

[0035] First, iron oxide powder with a particle size of 0.01 micron to 300 microns (the iron oxide powder described here is ferric oxide powder or ferrous oxide powder) is mixed with water to form a suspension for desulfurization, and the i...

Embodiment 2

[0041] See figure 2 , the device of the present invention comprises a desulfurization tower 16, an intermediate tank 21 at the bottom of the desulfurization tower, an iron oxide or ferrous oxide powder suspension circulation pump 15, a swirl type regeneration tank 7, a sulfur foam tank 9 at the bottom of the regeneration tank, an oxygen-containing Circulating gas blower 18, liquid level regulator .5. Wherein the upper part of the desulfurization tower 16 can also be provided with a mist suppressing layer 14, a pulse type cleaning device 19 is arranged above the mist suppressing layer, and a spray pipe 10 is arranged on the upper part of the sulfur foam discharge pipe 12 in the central area of ​​the regeneration tank 7.

[0042] First, iron oxide powder with a particle size of 0.01 micron to 300 microns (the iron oxide powder described here is ferric oxide powder or ferrous oxide powder) is mixed with water to form a suspension for desulfurization, and the iron oxide powder is...

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Abstract

The invention relates to a gas desulfurization and regeneration process by a liquid phase iron oxide powder suspension method, which is characterized in that: iron oxide powder or ferrous oxide powder suspension is adopted to remove hydrogen sulfide from gas; and the method comprises the following steps of: 1) mixing iron oxide powder or ferrous oxide powder with the granularity between 0.01 and 300 micrometers and water to form the suspension for desulfurization, and pumping the suspension into a desulfurization tower for circular spray by using a pump; 2) fully mixing sulfur-containing gas and the suspension for desulfurization in the desulfurization tower, discharging the desulfurized gas from the top of the desulfurization tower, and adding the suspension which has absorbed the sulfur into a regeneration tank; 3) in the regeneration tank, reacting oxygen-containing cyclic gas with the sulfur-containing suspension to generate iron oxide and sulfur element, and floating sulfur foam; and 4) flowing the regenerated iron oxide or ferrous oxide powder suspension out of the regeneration tank, and discharging into an intermediate tank on the bottom of the desulfurization tower for recycling. The process has the advantages that: the process has good desulfurization effect; the desulfurized suspension can be regenerated and recycled; and the equipment occupies a small area and runs safely.

Description

technical field [0001] The invention belongs to the technical field of desulfurization, and in particular relates to a process and a device for removing sulfides such as hydrogen sulfide in gas by using iron oxide powder suspension. Background technique [0002] Most of the existing liquid-phase wet desulfurization devices use liquid-phase catalytic oxidation desulfurization techniques and devices. At present, there is no process and device for removing sulfides such as hydrogen sulfide in gas from iron oxide powder suspension. Contents of the invention [0003] The object of the present invention is to provide a liquid-phase iron oxide powder suspension method gas desulfurization regeneration process and device, the process has good desulfurization effect, the suspension after desulfurization can be recycled, the equipment occupies less land, and is safe to operate. [0004] To achieve the above object, the present invention is achieved through the following technical so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/52B01D53/96
Inventor 姜辉
Owner 姜辉
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