Low-Temperature Plasma Exhaust Gas Deodorization and Purification Unit
Low-Temperature Plasma Exhaust Gas Deodorization and Purification Unit
The WT series plasma exhaust gas purifiers are designed with a cutting-edge adsorption–decomposition–carbonization process, featuring standard modular construction. They represent a dry-process solution for treating organic exhaust gases, fundamentally transforming conventional technologies that rely on activated carbon. This system eliminates the need for regeneration of the adsorbent, requires no dedicated operator, produces no secondary pollution, and offers convenient replacement and maintenance—operations can even be performed while the equipment is running. The QJY series plasma exhaust gas purifiers, on the other hand, impose minimal resistance on the exhaust fan, are easy to install, and can be manufactured in modular configurations tailored to specific site conditions, facilitating transportation and installation. With a compact design, low capital investment, and user-friendly operation, these units are available in standard or stainless-steel construction and handle airflows ranging from 6,000 to 60,000 m³/h. Together, these systems constitute state-of-the-art solutions for the treatment of industrial organic waste gas pollution.
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Product Introduction
The WT series plasma exhaust gas purifiers are designed with a cutting-edge adsorption–decomposition–carbonization process, featuring standard modular construction. They represent a dry-process solution for treating organic exhaust gases, fundamentally transforming conventional technologies that rely on activated carbon. This system eliminates the need for regeneration of the adsorbent, requires no dedicated operator, produces no secondary pollution, and offers convenient replacement and maintenance—operations can even be performed while the equipment is running. The QJY series plasma exhaust gas purifiers, in particular, impose minimal resistance on the exhaust fan, are easy to install, and can be manufactured in modular configurations tailored to specific site conditions, facilitating transportation and installation. With a compact design, low capital investment, and user-friendly operation, these units are available in standard or stainless-steel construction and handle airflows ranging from 6,000 to 60,000 m³/h. Together, they constitute state-of-the-art equipment for the treatment of industrial organic waste gas pollution.
Purification mechanism
1. Plasma is the fourth state of matter, following solid, liquid, and gas. By employing a pulsed high-frequency, high-voltage plasma power supply and a dual-dielectric toothed-plate discharge device that generates plasma through corona discharge, the system can ionize air and waste-gas molecules within milliseconds, triggering a series of dissociation and pyrolysis reactions. This process produces a highly concentrated, high-intensity, high-energy mixture of various reactive free radicals, electrons, ions, ozone, atomic oxygen, and ecological oxygen, which then undergoes a cascade of more complex physical and chemical reactions. These reactive free radicals effectively disrupt the nucleic acids and proteins in viruses and bacteria, inhibiting their normal metabolic and biosynthetic processes and ultimately leading to cell death. Meanwhile, ecological oxygen rapidly decomposes or reduces organic waste-gas molecules and malodorous compounds into low-molecular-weight, harmless substances. In addition, leveraging the polymerization and adsorption properties of plasma, even ultrafine organic particulate matter as small as sub-micron sizes can be efficiently captured and settled.
2. During the discharge process, although the electron temperature is very high, the temperature of the heavy particles remains low, resulting in a low-temperature state for the entire system; hence the term “low-temperature plasma.” In low-temperature plasma-based pollutant degradation, high-energy electrons, free radicals, and other active species interact with pollutants in the exhaust gas, causing the pollutant molecules to decompose within an extremely short time and subsequently undergoing various secondary reactions to achieve the goal of pollutant degradation.
3. Basic process:
Process 1: Direct Bombardment by High-Energy Electrons
Process 2: Oxidation by O atoms or ozone: O₂ + e⁻ → 2O
Process 3: Oxidation by OH radicals: H2O + e → OH + H; H2O + O → 2 HO; H + O2 → OH + O.
Process Four: Reaction of Molecular Fragments with Oxidation
The WT series plasma exhaust gas purifiers are designed with a cutting-edge adsorption–decomposition–carbonization process, featuring standard modular construction. They represent a dry-process solution for treating organic exhaust gases, fundamentally transforming conventional technologies that rely on activated carbon. This system eliminates the need for regeneration of the adsorbent, requires no dedicated operator, produces no secondary pollution, and offers convenient replacement and maintenance—operations can even be performed while the equipment is running. The QJY series plasma exhaust gas purifiers, in particular, impose minimal resistance on the exhaust fan, are easy to install, and can be manufactured in modular configurations tailored to specific site conditions, facilitating transportation and installation. With a compact design, low capital investment, and user-friendly operation, these units are available in standard or stainless-steel construction and handle airflows ranging from 6,000 to 60,000 m³/h. Together, they constitute state-of-the-art equipment for the treatment of industrial organic waste gas pollution.
Purification mechanism
1. Plasma is the fourth state of matter, following solid, liquid, and gas. By employing a pulsed high-frequency, high-voltage plasma power supply and a dual-dielectric toothed-plate discharge device that generates plasma through corona discharge, the system can ionize air and waste-gas molecules within milliseconds, triggering a series of dissociation and pyrolysis reactions. This process produces a highly concentrated, high-intensity, high-energy mixture of various reactive free radicals, electrons, ions, ozone, atomic oxygen, and ecological oxygen, which then undergoes a cascade of more complex physical and chemical reactions. These reactive free radicals effectively disrupt the nucleic acids and proteins in viruses and bacteria, inhibiting their normal metabolic and biosynthetic processes and ultimately leading to cell death. Meanwhile, ecological oxygen rapidly decomposes or reduces organic waste-gas molecules and malodorous compounds into low-molecular-weight, harmless substances. In addition, leveraging the polymerization and adsorption properties of plasma, even ultrafine organic particulate matter as small as sub-micron sizes can be efficiently captured and settled.
2. During the discharge process, although the electron temperature is very high, the temperature of the heavy particles remains low, resulting in a low-temperature state for the entire system; hence the term “low-temperature plasma.” In low-temperature plasma-based pollutant degradation, high-energy electrons, free radicals, and other active species interact with pollutants in the exhaust gas, causing the pollutant molecules to decompose within an extremely short time and subsequently undergoing various secondary reactions to achieve the goal of pollutant degradation.
3. Basic process:
Process 1: Direct Bombardment by High-Energy Electrons
Process 2: Oxidation by O atoms or ozone: O₂ + e⁻ → 2O
Process 3: Oxidation by OH radicals: H2O + e → OH + H; H2O + O → 2 HO; H + O2 → OH + O.
Process Four: Reaction of Molecular Fragments with Oxidation
4. Utilizing a specially formulated TiO2 photocatalytic oxidation-and-hydrogenation filter cotton, continuous oxidation-and-hydrogenation reactions are carried out on untreated exhaust pollutants, as well as on ozone, eco-oxygen, and active free radicals, thereby ensuring that, after multi-stage purification, harmful gases such as exhaust pollutants ultimately meet emission standards before being released.
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Factory: No. 33-2, EMU Dongche Street, Shawan Town, Panyu District, Guangzhou City, China
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