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A system and method for treating toxic gases using galvanically coupled plasma

A technology for coupling plasma and toxic gas, applied in the field of electrochemistry, can solve the problems of large power consumption, rapid heat release, large energy consumption, etc., and achieve the effect of promoting purification effect, reducing energy consumption and flexible method.

Active Publication Date: 2022-02-08
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method is cumbersome and consumes a lot of electric energy. At the same time, because the chemical properties of these purifying agent components are active, they are easy to chemically react with oxygen or water during the high-temperature purification process. When the reaction purification agent is post-treated, there is a risk of rapid heat release and harmful gas generation.
Traditional treatment methods generally have problems such as unsatisfactory treatment effect, low efficiency, complicated process, time-consuming, and high energy consumption. There is an urgent need for a system and method that can simply and effectively purify such toxic gases and even various toxic gases.

Method used

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  • A system and method for treating toxic gases using galvanically coupled plasma
  • A system and method for treating toxic gases using galvanically coupled plasma
  • A system and method for treating toxic gases using galvanically coupled plasma

Examples

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Effect test

Embodiment 1

[0045] In this embodiment one, the toxic gas to be treated is SF 6 , according to SF 6 The chemical composition and properties, in the present embodiment one, adopt the voltage scope in the low voltage Plasma generating device in the range of 0-220V, adjust the Plasma voltage regulator, output the alternating current of 50V, 50Hz to the Plasma generating device, SF 6 In the closed Plasma generating device, sufficient ionization can be obtained. The ionized gas particles contain positive and negative ions and electrons, and the gas as a whole is electrically neutral; the internal pressure of the Plasma generating device is maintained at 0.3MPa; the purification device adopts 4V DC power supply and adopts porous The carbon rod is used as the positive electrode to connect the positive electrode of the DC power supply, and the first main group metal single substance Li is used as the cathode electrode to connect the negative electrode of the DC power supply. The sheet shape is use...

Embodiment 2

[0052] In the second embodiment, the toxic gas to be treated is CF 4 , according to CF 4 The chemical composition and properties, in the present embodiment two, adopt the voltage range in the low voltage plasma generating device in the range of 0-220V, regulate the plasma voltage regulator, output the alternating current of 50V, 50Hz to the plasma generating device, CF 4 In the closed Plasma generating device, sufficient ionization can be obtained. The ionized gas particles contain positive and negative ions and electrons, and the gas as a whole is electrically neutral; the internal pressure of the Plasma generating device is maintained at 0.3MPa; the purification device adopts 4V DC power supply and adopts porous The carbon rod is used as the positive electrode to connect the positive electrode of the DC power supply, and the second main group metal element Mg is used as the cathode electrode to connect the negative electrode of the DC power supply. The sheet shape is used to...

Embodiment 3

[0059] In this embodiment three, the toxic gas to be treated is SF 6 , according to SF 6 The chemical composition and properties, in the present embodiment three, adopt the high voltage plasma generating device that voltage range is greater than 250V, adjust the Plasma voltage regulator, output the alternating current of 350V, 50Hz to the plasma generating device, SF 6 In the closed Plasma generating device, sufficient ionization can be obtained. The ionized gas particles contain positive and negative ions and electrons, and the gas as a whole is electrically neutral; the internal pressure of the Plasma generating device is maintained at 0.3MPa; the purification device uses a 3V DC power supply and adopts porous The carbon rod is used as the positive electrode to connect the positive electrode of the DC power supply, and the first main group metal element Na is used as the cathode electrode to connect the negative electrode of the DC power supply. The sheet shape is used to in...

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Abstract

The invention discloses a system and method for treating toxic gas by using electrically coupled plasma. Plasma; the purification device is located inside the Plasma generating device for purifying toxic gases; the method is: adjusting the Plasma voltage regulator to generate plasma inside the Plasma generating device; toxic gas molecules form various tiny particles under the action of the plasma , to react with the purification device; the gas detection device detects the gas discharged from the Plasma generator, and decides whether to discharge it. Through ionization, toxic gas molecules are broken down to form tiny particles, which react with the purification device to achieve the purpose of effective purification treatment, and also provide technical reference for other toxic gas purification treatment.

Description

technical field [0001] The invention relates to the field of electrochemistry, in particular to a system and method for treating poisonous gas with electrically coupled plasma. Background technique [0002] The phenomenon of global warming caused by the greenhouse effect is becoming more and more serious. Compared with the traditional understanding of the greenhouse gas CO 2 , the fluoride gas has a higher greenhouse effect potential value, and the fluoride gas is not easy to decompose, and the resulting greenhouse effect will continue to increase for a long time, which will have a great impact on the natural environment and human life. [0003] At present, for such toxic pollutant gases, lye or Al 2 o 3 Adsorption, or use calcium and / or magnesium as the active ingredient of the purifier, or use metal zinc, metal aluminum or a mixture of the two as the main ingredient of the purifier. However, since such gases are chemically stable at room temperature, even under the acti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L9/22
CPCA61L9/22
Inventor 张利强郭云娜黄建宇唐永福
Owner YANSHAN UNIV
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