Core Technology

Scope of application

 

1. It is suitable for the treatment of low concentration (1 ~ 1000ppm) waste gas, and can effectively remove volatile organic compounds (VOC), inorganic substances, hydrogen sulfide, ammonia, mercaptan and other major pollutants, as well as all kinds of odor;

2. It is suitable for volatile organic waste gas treatment in petroleum, pharmaceutical, paint, printing, coating and other industries.

 

 

Technical features

 

(1) Simple process: low temperature plasma equipment, simple operation, convenient, no need for special care, automatic shutdown alarm in case of failure.

 

(2) Energy saving: low energy consumption, low operation cost, 2 ~ 5 watt hours / meter.

 

(3) Wide range of application: it can operate normally in the environment of - 60 ℃ ~ + 300 ℃, especially in the humid environment, even the air humidity is saturated.

 

(4) Long service life: the equipment is made of stainless steel, quartz, molybdenum and other materials, with strong oxidation resistance and corrosion resistance in acid gas.

 

(5) Strong combination: low temperature plasma treatment equipment can be used in parallel.

 

(6) 500-2000 m3 / h is a unit of warm plasma treatment device, and one unit is excited by a pulse power supply.

 

 

 

Technical principle

 

Low temperature plasma deodorization technology produces high-energy electrons under the acceleration of electric field. When the average energy of electrons exceeds the molecular chemical bond energy of target compounds, the molecular bond breaks, so as to eliminate gaseous pollutants. In the 1980s, the pulsed corona discharge method proposed by Professor S. Masuda of Tokyo University is the simplest and most effective method to obtain low temperature plasma at normal temperature and pressure. It has become the current research frontier, and is more and more used in the treatment of gaseous pollutants. In the process of plasma chemical reaction, the energy transfer in the reaction process is roughly as follows:

 

 

(1) Electricity + electron → high energy electron

 

(2) High energy electron + molecule (or atom) → (excited atom, excited group, free group) active group

 

(3) Active group + molecule (atom) → product + heat

 

(4) Active group + active group → product + heat

 

 

It can be seen from the above process that the electron first obtains energy from the electric field and transfers the energy to molecules or atoms by excitation or ionization. The molecules or atoms that obtain energy are excited, and some molecules are ionized to become active groups. Then, stable products and heat are generated after these active groups collide with molecules or atoms, active groups and active groups 。 In addition, high-energy electrons can also be trapped by halogen and oxygen with strong electron affinity and become negative ions. These anions have good chemical activity and play an important role in chemical reactions.