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Desulfurization method and desulfurization device for industrial mixed gas

A technology of mixed gas and desulfurization equipment, which is applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., and can solve problems such as complex processes, regeneration of organic sulfur hydrolyzing agents and hydrogen sulfide adsorbents, waste of resources, etc.

Active Publication Date: 2020-10-09
中琉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is that the desulfurization process of the existing industrial mixed gas cannot continuously realize the regeneration of the organic sulfur hydrolyzing agent and the hydrogen sulfide adsorbent on-line, and it is necessary to continuously replace the organic sulfur hydrolyzing agent and the hydrogen sulfide adsorbent or introduce other components To regenerate the organic sulfur hydrolyzing agent and the hydrogen sulfide adsorbent, the process is complicated and the defect of wasting resources, so as to provide a desulfurization method and desulfurization device for industrial mixed gas

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  • Desulfurization method and desulfurization device for industrial mixed gas

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Embodiment 1

[0050] like figure 1 As shown, the present invention provides a desulfurization device, comprising: a tank body 1, which is provided with a desulfurization gas inlet 2 and a desulfurization gas outlet 3; an organic sulfur hydrolysis layer 5, a deoxidation layer 6 and a hydrogen sulfide adsorption layer 7, which are arranged on the Inside the tank body 1, and arranged in sequence along the axial direction of the tank body 1, the desulfurization air inlet 2 is located at the end of the tank body 1 close to the organic sulfur hydrolysis layer 5, and the desulfurization air outlet 3 is located at the end of the tank body 1 close to the organic sulfur hydrolysis layer 5. The tank body 1 is close to one end of the hydrogen sulfide adsorption layer 7 .

[0051] In the desulfurization device of the present invention, optionally, the desulfurization device may be a desulfurization tower. In the present invention, the organic sulfur hydrolysis layer 5, the deoxidation layer 6 and the h...

Embodiment 2

[0081] like figure 1 As shown, the present embodiment provides a desulfurization method for industrial mixed gas, comprising the following steps:

[0082] 1) Desulfurization step: the 60°C industrial mixed gas (wherein the industrial mixed gas contains 200 mg / Nm 3 COS, 0.5% (volume content) oxygen, 25% (volume content) carbon monoxide, 5% (volume content) hydrogen, 15% (volume content) carbon dioxide, with nitrogen as the balance gas) for 5000h -1 The volume air velocity is passed into the tank 1 from the desulfurization air inlet 2 at the bottom of the desulfurization tower, and successively passes through the filter layer 4 (the filter layer 4 is filled with 4A molecular sieve), the organic sulfur hydrolysis layer 5 (the organic sulfur hydrolysis layer 5 is filled with K 2 CO 3 / Ti-Al 2 O 3 Hydrolysis agent), deoxidation layer 6 (deoxidation layer 6 is filled with honeycomb ceramic carrier and platinum metal deoxidizer 14), hydrogen sulfide adsorption layer 7 (hydrogen s...

Embodiment 3

[0086] like figure 1 As shown, the present embodiment provides a desulfurization method for industrial mixed gas, comprising the following steps:

[0087] 1) Desulfurization step: the 70 ℃ industrial mixed gas (in which the industrial mixed gas contains 180 mg / Nm 3 COS, 0.7% (volume content) oxygen, 27% (volume content) carbon monoxide, 2% (volume content) hydrogen, 13% (volume content) carbon dioxide, with nitrogen as the balance gas) for 3000h -1 The volume air velocity is passed into the tank body 1 from the desulfurization air inlet 2 at the bottom of the desulfurization tower, and successively passes through the filter layer 4 (the filter layer 4 is filled with 13X molecular sieves), the organic sulfur hydrolysis layer 5 (the organic sulfur hydrolysis layer 5 is filled with K 2 C 2 O 4 / Ti-MgAl 2 O 4 Hydrolyzing agent), deoxidizing layer 6 (deoxidizing layer 6 is filled with honeycomb ceramic carrier supporting palladium metal deoxidizer), hydrogen sulfide adsorption...

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Abstract

The invention belongs to the field of atmospheric purification and environmental protection, and particularly relates to a desulfurization method and a desulfurization device for industrial mixed gas.The desulfurization method of the industrial mixed gas provided by the invention comprises the following steps: enabling the industrial mixed gas to be in contact with an organic sulfur hydrolytic agent and a hydrogen sulfide adsorbent in sequence for desulfurization, so as to obtain desulfurized industrial mixed gas, a desulfurized organic sulfur hydrolytic agent and a desulfurized hydrogen sulfide adsorbent; and sequentially contacting the desulfurized industrial mixed gas with a desulfurized hydrogen sulfide adsorbent, a deoxidizing agent and a desulfurized organic sulfur hydrolytic agentto regenerate the desulfurized hydrogen sulfide adsorbent and the desulfurized organic sulfur hydrolytic agent. According to the desulfurization method, online continuous regeneration of the organic sulfur hydrolytic agent and the hydrogen sulfide adsorbent is realized, and the defects that the organic sulfur hydrolytic agent and the hydrogen sulfide adsorbent need to be continuously replaced, theprocess is complex and resources are wasted are avoided.

Description

technical field [0001] The invention belongs to the field of atmospheric purification and environmental protection, and particularly relates to a desulfurization method and a desulfurization device for industrial mixed gas. Background technique [0002] In industrial production, a mixed gas rich in reducing gas, oxygen and carbonyl sulfide COS is often produced, that is, an industrial mixed gas. However, even trace amounts of COS (200 mg / Nm 3 It is also easy to corrode industrial production equipment, and the direct emission of untreated carbonyl sulfide COS into the atmosphere will also promote photochemical reactions and form sulfate aerosols, which seriously endanger people's health. At present, the treatment method of COS generally adopts the catalytic hydrolysis method, which uses a COS hydrolyzing agent to convert COS into easily handled hydrogen sulfide (H2S). 2 S), then hydrogen sulfide is converted into sulfur or sulfate solid through various adsorbents, alkaline ...

Claims

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Application Information

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IPC IPC(8): B01D53/82B01D53/48B01D53/46
CPCB01D53/82B01D53/46B01D53/48B01D2257/104B01D2257/306B01D2257/304
Inventor 江莉龙刘时球肖益鸿郑勇刘福建曹彦宁
Owner 中琉科技有限公司
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