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High concentration H2S elimination system and high concentration H2S elimination method

A hydrogen sulfide, high-concentration technology, applied in chemical instruments and methods, separation methods, sulfur preparation/purification, etc., can solve the problems of secondary pollution regeneration cost, cumbersome procedures, expensive equipment, etc., to achieve improved sulfur removal effect, The effect of avoiding secondary pollution and maintaining service life

Inactive Publication Date: 2014-04-09
SPRING FOUND OF NCTU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods still have their disadvantages
For example, although the physical method has the advantages of high removal rate, short operation time and no time limit, it may cause secondary pollution and high regeneration cost; although the biological treatment method consumes less energy, is low cost and does not cause secondary pollution, However, there is still an upper limit for the concentration of hydrogen sulfide that microorganisms can withstand; and the removal of hydrogen sulfide by the amine absorption method and the recovery of hydrogen sulfide with the Claus method can effectively remove hydrogen sulfide, but it faces problems such as expensive equipment and cumbersome procedures.

Method used

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  • High concentration H2S elimination system and high concentration H2S elimination method
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  • High concentration H2S elimination system and high concentration H2S elimination method

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Experimental program
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Embodiment 1

[0037] figure 1 It is a schematic diagram of the high-concentration hydrogen sulfide removal system of this embodiment, wherein "---" refers to the liquid flow path, and "..." refers to the gas flow path. In this embodiment and the following embodiments, the liquid circulation path and the gas circulation path are only represented by lines, however, the liquid and gas circulation paths can be pipelines such as plastic, iron pipes, stainless steel pipes or other materials.

[0038] Such as figure 1 As shown, the high-concentration hydrogen sulfide removal system of the present embodiment includes: a chemical desulfurization module 11 having a gas inlet 111, a gas outlet 112 and a liquid outlet 114, and a hydrogen sulfide-containing gas 15 is passed through the gas outlet The inlet 111 leads into the chemical desulfurization module 11; a chemical storage unit 12 includes a chemical oxidant and is connected to the liquid outlet 114 of the chemical desulfurization module 11; a li...

Embodiment 2

[0044] In this embodiment, the high-concentration hydrogen sulfide removal system and removal method are the same as those in Embodiment 1, except for the following differences.

[0045] In the high-concentration hydrogen sulfide removal system of this embodiment, the chemical desulfurization module includes multiple sulfur removal pipe columns 115 , 116 , 117 , wherein the sulfur removal pipe columns 115 , 116 , 117 are connected in series. Here, the so-called series connection means that the gas is passed into the desulfurization column 115 , the desulfurization column 116 and the desulfurization column 117 sequentially.

[0046] Furthermore, in the high-concentration hydrogen sulfide removal system of this embodiment, a liquid spraying unit 13 is respectively arranged above each desulfurization column 115, 116, 117, and is placed in the chemical storage unit 12 by a pump 161. The chemical oxidant is guided to each liquid spraying unit 13, so as to spray the chemical oxidant...

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Abstract

A high concentration H2S elimination system and a method using the same are disclosed. The system of the present invention comprises: a chemical H2S elimination module with a gas inlet, a gas outlet and a liquid outlet, wherein H2S-containing gas is introduced into the chemical H2S elimination module; a chemical reagent storage unit containing a chemical oxidant; a liquid spray unit, wherein the chemical oxidant contained in the chemical reagent storage unit is introduced into the chemical H2S elimination module from the liquid inlet thereof through the liquid spray unit; a bio-regeneration unit comprising a microorganism to regenerate oxidant and connecting to the reagent storage unit; and a sulfur-removing module connecting to the liquid outlet of the chemical H2S elimination module.

Description

technical field [0001] The invention relates to a high-concentration hydrogen sulfide removal system and method, in particular to a high-concentration hydrogen sulfide removal system and method that can regenerate chemical oxidants. Background technique [0002] Hydrogen sulfide is one of the common polluting gases. For example, in various industrial processes, hydrogen sulfide-containing gases in different concentration ranges will be produced. For example, in landfills, hydrogen sulfide-containing gas with a hydrogen sulfide concentration of about 1000ppm can be measured; biogas produced by anaerobic wastewater treatment plants has a hydrogen sulfide concentration between 3000ppm and 10000ppm; leather, papermaking, oil refining, etc. Industry can even produce polluting gases with hydrogen sulfide concentrations of tens of thousands of ppm. These generated gases containing high concentrations of hydrogen sulfide will cause corrosion of machines and tools, and even cause fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52B01D53/78C01B17/05
CPCB01D53/96B01D53/52
Inventor 曾庆平林威志
Owner SPRING FOUND OF NCTU