Low-temperature plasma device

► Technical Introduction

Low-temperature plasma is the fourth state of matter after solid, liquid, and gas. During the discharge process, the entire system remains at a low temperature, hence the name low-temperature plasma. It can efficiently decompose pollutant molecules in a very short time and cause various subsequent reactions to achieve the purpose of decomposing pollutants. The application of low-temperature plasma has opened up the technical bottleneck of organic waste gas treatment and opened up a new approach for the purification of industrial waste gas deodorization equipment.

► Purification Principle

The low-temperature plasma industrial waste gas deodorization equipment produced by Tianwang uses low-temperature plasma generated by a high-frequency high-voltage electric field. During the discharge process, electrons obtain energy from the electric field and convert the energy into the internal energy or kinetic energy of pollutant molecules through inelastic collisions. These energized molecules are excited or ionized to form active groups. At the same time, oxygen and water molecules in the air can also produce a large number of nascent hydrogen, active oxygen, and hydroxyl oxygen active groups under the action of high-energy electrons. These active groups collide with each other, triggering a series of complex physical and chemical reactions. From the composition of the active groups in the plasma, it can be seen that the plasma is rich in particles with extremely high chemical activity, such as electrons, ions, free radicals, and excited molecules. The pollutants in the waste gas react with these highly energetic active groups and are finally converted into substances such as CO2 and H2O, thereby achieving the purpose of purifying the waste gas.

► Technological Advancement and Product Features

1. High-tech innovative product: "Low-temperature plasma" technology is an electrochemical process based on the combined action of electronics, chemistry, and catalysis, representing a completely new field of technological innovation. It relies on the powerful electric field energy generated by plasma in an instant to ionize and decompose the chemical bond energy of harmful gases, thereby destroying the molecular structure of waste gas and achieving purification.

2. Highly efficient waste gas purification: This equipment can efficiently remove volatile organic compounds (VOCs), inorganic substances, hydrogen sulfide, ammonia, mercaptans, and other major pollutants, as well as various odors. The deodorization efficiency can reach over 98%. For long-term lingering and accumulated odors, it can be removed within 24 hours. It also has a strong ability to kill various microorganisms such as bacteria and viruses in the air and has a significant mildew-proof effect. The deodorization effect exceeds the national emission standards for odorous pollutants.

3. No need to add any substances: Low-temperature plasma waste gas treatment is a dry purification process, a completely new purification process that does not require any additives, does not produce wastewater or waste residue, and will not cause secondary pollution.

4. Strong adaptability: Durable purification function, no need for dedicated personnel supervision. It can adapt to the purification treatment of high concentrations, large air volumes, and different gaseous substances. It can operate in environments with temperatures ranging from 250°C to -50°C, and can operate normally even in humid or air-saturated environments, working continuously 24 hours a day for long-term stable and reliable operation.

5. Low energy consumption and energy saving: Low operating costs and energy saving are one of the core patented technologies of "low-temperature plasma." Treating 1000 m³/h of odorous gas consumes only 0.25 kW/h of electricity. This equipment has no mechanical action, high automation, simple process, and simple operation. It does not require dedicated personnel management and daily maintenance, and automatically shuts down and alarms in case of malfunctions, requiring only periodic inspections.

6. Strong equipment combination: "Low-temperature plasma" products are lightweight and small in size, can be placed vertically or horizontally according to site requirements, and can be designed in series or parallel combinations according to waste gas concentration, flow rate, and composition to achieve complete waste gas purification.

7. Long service life of equipment: This equipment is made of stainless steel, copper, molybdenum, epoxy resin, and other materials, with strong oxidation resistance and good corrosion resistance to acid, alkali gases, and humid environments. The service life is up to 10 years or more.

8. Safety: The voltage used in the "low-temperature plasma" equipment is below 36 volts, safe and reliable, and does not pose any harm to the human body.

► Applicable Fields

Sulfur-containing compounds: such as hydrogen sulfide, mercaptans, dimethyl sulfide, sulfides, and sulfur-containing heterocyclic compounds

Nitrogen-containing compounds: such as ammonia, amines, nitriles, nitro compounds, and nitrogen-containing heterocyclic compounds

Compounds composed of carbon, hydrogen, and oxygen (lower alcohols, aldehydes, esters, etc.)

Benzene series: such as styrene, benzene, toluene, xylene, etc.

Halogen-containing compounds: such as ammonia, chloroform, carbon tetrachloride, dichloromethane, etc.

Seven major odorous substances: hydrogen sulfide, ammonia, trimethylamine, methyl mercaptan, methyl sulfide, carbon disulfide, dimethyl disulfide

► Application Industries

This equipment can be used in the petroleum, pharmaceutical, feed, fertilizer processing, animal husbandry, chemical fiber, leather, pulp, sewage pumping station, sewage treatment, automobile manufacturing, public toilet fecal transfer station, and other industries.