Method and device for removing hydrogen sulfide in waste gas through continuous oxidation

A hydrogen sulfide and exhaust gas technology, applied in chemical instruments and methods, separation methods, sulfur preparation/purification, etc., can solve the problems of low hydrogen sulfide absorption efficiency, inability to effectively remove or recover hydrogen sulfide, and inability to guarantee hydrogen sulfide and injection The full contact of the spraying liquid and other issues can achieve the effect of facilitating liquid and gas convection exchange, increasing the treatment effect and low cost

Pending Publication Date: 2018-12-11
YIBIN GRACE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are still technical problems in the above two patents: the sufficient contact between hydrogen sulfide and spray liquid cannot be guaranteed, resulting in low absorption efficiency of hydrogen sulfide, and the inability to effectively remove or recover hydrogen sulfide

Method used

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  • Method and device for removing hydrogen sulfide in waste gas through continuous oxidation
  • Method and device for removing hydrogen sulfide in waste gas through continuous oxidation

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A method for removing hydrogen sulfide in waste gas based on continuous oxidation, comprising the steps of:

[0047] A. The exhaust gas containing hydrogen sulfide passes through the blower on the exhaust gas delivery pipe, and the air volume is 19800m 3 / h, wind pressure is 7800pa and temperature is 20 DEG C and is transported in the tank body 1;

[0048] After the exhaust gas containing hydrogen sulfide enters the tank body 1, it diffuses into the through cavity 14 of the tank body 1;

[0049] B. The spray pipe 4 sprays the atomized oxidant into the through cavity 14 of the tank body 1 through the atomizing nozzle 5, and after the oxidant enters the tank body 1, it diffuses into the through cavity 14 of the tank body 1;

[0050] The oxidizing agent has a temperature of 30°C and a flow rate of 180m 3 / h and a pressure of 0.2Mpa into the through cavity 14 of the tank body 1;

[0051] C. The exhaust gas containing hydrogen sulfide in step A is contacted with the at...

Embodiment 2

[0057] A method for removing hydrogen sulfide in waste gas based on continuous oxidation, comprising the steps of:

[0058] A. The exhaust gas containing hydrogen sulfide passes through the blower on the exhaust gas delivery pipe, and the air volume is 20000m 3 / h, wind pressure is 8000pa and temperature is 30 DEG C and is transported in the tank body 1;

[0059] After the exhaust gas containing hydrogen sulfide enters the tank body 1, it diffuses into the through cavity 14 of the tank body 1;

[0060] B. The spray pipe 4 sprays the atomized oxidant into the through cavity 14 of the tank body 1 through the atomizing nozzle 5, and after the oxidant enters the tank body 1, it diffuses into the through cavity 14 of the tank body 1;

[0061] The oxidizing agent has a temperature of 35°C and a flow rate of 210m 3 / h and a pressure of 0.3Mpa into the through cavity 14 of the tank body 1;

[0062] C. The exhaust gas containing hydrogen sulfide in step A is contacted with the at...

Embodiment 3

[0068] A method for removing hydrogen sulfide in waste gas based on continuous oxidation, comprising the steps of:

[0069] A. The exhaust gas containing hydrogen sulfide passes through the blower on the exhaust gas delivery pipe, and the air volume is 19900m 3 / h, wind pressure is 7900pa and temperature is that 25 ℃ are transported in the tank body 1;

[0070] After the exhaust gas containing hydrogen sulfide enters the tank body 1, it diffuses into the through cavity 14 of the tank body 1;

[0071] B. The spray pipe 4 sprays the atomized oxidant into the through cavity 14 of the tank body 1 through the atomizing nozzle 5, and after the oxidant enters the tank body 1, it diffuses into the through cavity 14 of the tank body 1;

[0072] The oxidizing agent has a temperature of 33°C and a flow rate of 195m 3 / h and a pressure of 0.25Mpa into the through cavity 14 of the tank body 1;

[0073] C. The exhaust gas containing hydrogen sulfide in step A contacts the atomized oxi...

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Abstract

The invention discloses a method and device for removing hydrogen sulfide in waste gas based on continuous oxidation, and belongs to the technical field of waste gas treatment. According to the methodand the device, the parameters of the air volume, the wind pressure and the temperature of the waste gas containing the hydrogen sulfide entering a through cavity of a tank body are defined, so thatthe hydrogen sulfide makes full contact with an oxidizing agent in an atomized state; the parameters of the temperature, the flow rate and the pressure of the oxidizing agent are defined, so that theoxidizing agent is in an atomized state, the contact efficiency of the oxidizing agent and the hydrogen sulfide can be improved, and the complete and thorough oxidation reduction reaction can be ensured; an atomizing nozzle is arranged, so that oxidizing agent spray can make full contact with the hydrogen sulfide, and therefore the absorption effect on the hydrogen sulfide is improved; a gas baffle and a liquid baffle are arranged, so that the oxidizing agent spray can make full contact with the hydrogen sulfide, and meanwhile, the absorption process can be orderly and effectively carried outin a controlled mode; and the liquid baffle is axially arranged, the height of the liquid baffle is gradually decreased, the liquid level after the oxidizing agent spray is condensed can be kept, liquid-gas convection exchange is facilitated, and the absorption effect of the oxidizing agent on hydrogen oxide is improved.

Description

technical field [0001] The invention relates to a method and device for removing hydrogen sulfide in waste gas, in particular to a method and device for removing hydrogen sulfide in waste gas based on continuous oxidation, and belongs to the technical field of waste gas treatment. Background technique [0002] At present, in the production process of viscose fiber, the waste gas produced contains harmful gas hydrogen sulfide. Hydrogen sulfide gas is a colorless, flammable acid gas. When the concentration is low, it has a foul smell, like rotten eggs; Paralyzes the olfactory nerve. It is soluble in water and is an acute and highly toxic substance. Inhaling a small amount of high-concentration hydrogen sulfide can be fatal in a short time; low-concentration hydrogen sulfide has effects on the eyes, respiratory system and central nervous system; its harm to the environment and humans It is extremely harmful. Generally, sodium hydroxide solution is used to react and absorb hydr...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/52C01B17/04
CPCB01D53/52B01D53/78C01B17/04
Inventor 吴静贺敏张扬
Owner YIBIN GRACE
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