Plasma flue gas purification equipment

1. Working principle
The working principle of the plasma purifier is: under the action of an external electric field, a large number of energy-carrying electrons generated by dielectric discharge bombard pollutant molecules, causing them to ionize, dissociate and excite, and then trigger a series of complex physical and chemical reactions. Complex macromolecular pollutants are transformed into simple small molecular safe substances, or toxic and harmful substances are transformed into non-toxic, harmless or low-toxic and low-harm substances, so that pollutants can be degraded and removed. Because the average energy of electrons generated after ionization is 10ev, proper control of reaction conditions can make chemical reactions that are difficult to achieve or very slow in general conditions very fast.
Schematic diagram of plasma organic waste gas treatment
Mechanism of low temperature plasma removal of pollutants:
In the plasma chemical reaction process, the energy transfer during the plasma transfer chemical energy reaction process is roughly as follows:
(1) Electric field + electron → high energy electron
(2) High-energy electrons + molecules (or atoms) → (excited atoms, excited groups, free radicals) active groups
(3) Active group + molecule (atom) → product + heat
(4) Active group + active group → product + heat
It can be seen from the above process that electrons first obtain energy from the electric field, and transfer the energy to molecules or atoms through excitation or ionization. The molecules or atoms that obtain energy are excited, and some molecules are ionized at the same time, thus becoming active groups; Then these reactive groups collide with molecules or atoms, reactive groups and reactive groups to generate stable products and heat. In addition, high-energy electrons can also be captured by substances with strong electron affinity such as halogen and oxygen, and become negative ions. Such negative ions have good chemical activity and play an important role in chemical reactions.
2. Plasma exhaust gas purifier product features Performance characteristics:
1. High technological content, the introduction of foreign advanced technology.
2. Modular design, flexible and convenient, simple installation, small footprint.
3. The discharge intensity is high, and the density of high-energy plasma is high.
4. Compared with traditional corona discharge and DDBD, the synergistic effect of photons in the combined plasma can degrade exhaust gas more efficiently.
5. Small air resistance, reducing pressure drop loss. Low power consumption.
6. It is suitable for most malodorous waste gas and organic waste gas, with high degradation rate.
7. The electrode is not in direct contact with the waste gas, so it has a long service life.
8. It is not suitable for high-temperature and high-humidity gas, and it is not recommended to use it in the case of large air volume.
The organic waste gas is discharged up to the standard after being treated by the plasma waste gas purifier
3. Applicable scope:
Plasma exhaust gas treatment equipment is widely used in various low-concentration organic (spraying, printing, gluing, baking, etc.) exhaust gas treatment.