What is the best method to deal with exhaust gases

What is the best way to deal with exhaust gas with the first to understand the local environmental protection on the approximate requirements for exhaust gas treatment, followed by looking at the EIA report to deal with the comments, and then combined with the working conditions of the exhaust gas, so that you can choose the best way to deal with the exhaust gas, not only to meet the standards of discharge, and can save a lot of unnecessary expenditure, the following with the Everest blue editorial take a look at the introduction of the main methods of treatment of some of the exhaust gas.

Catalytic combustion process for waste gas treatment

Catalytic combustion is mainly composed of heat exchanger, combustion chamber, catalytic reactor, heat recovery system and emission chimney for purifying flue gas, as shown in the right figure. The purification principle is: unpurified gas before entering the combustion chamber, first by the heat exchanger is preheated and sent to the combustion chamber, in the combustion chamber to reach the required reaction temperature, oxidation reaction in the catalytic reactor, purified flue gas by the heat exchanger to release the heat of the sector, and then discharged into the atmosphere by the chimney.

In the chemical reaction process, the use of catalysts to reduce the combustion temperature, accelerate the complete oxidation of toxic and harmful gases is called catalytic combustion method. Because the catalyst carrier is made of porous material, has a large surface area and suitable pore size, when heated to 300 ~ 450 ℃ organic gas through the catalytic layer, oxygen and organic gases are adsorbed in the porous material on the surface layer of the catalyst, increasing the oxygen and organic gases in contact with the collision of the opportunity to improve the activity, so that the organic gases with the oxygen to produce a violent chemical reaction and natural CO2 and H2O, and the production of heat. At the same time, heat is generated, thus making the organic gas into a non-toxic and harmless gas.

Waste gas treatment RTO regenerative thermal incineration process

RTO is a kind of energy-saving environmental protection device used for treating volatile organic waste gas in low concentration, RTO waste gas treatment adopts thermal oxidation method to treat organic waste gas in low concentration, and recovers heat by using ceramic regenerative bed heat exchanger. Its main features are: the automatic control valve at the bottom of the heat storage bed were connected to the inlet and exhaust pipelines, the heat storage bed through the reversing valve cross substitution, the high temperature gas from the combustion chamber out of the heat storage, and preheat into the heat storage bed of the organic waste gas; the use of ceramic heat storage materials to absorb and release the heat.

Exhaust gas treatment UV light oxygen activated carbon machine process

The use of high-energy high oxygen UV ultraviolet beam decomposition of oxygen molecules in the air to produce free oxygen, i.e., activated oxygen, due to the imbalance of positive and negative electrons carried by the free oxygen, so it is necessary to combine with the oxygen molecules, which in turn produces ozone.

Chemical principle: UV + O2 → O - + O* (active oxygen) O + O2 → O3 (ozone), it is well known that ozone has a strong oxidation of organic matter, on the malodorous gases and other irritating odours have the effect of removing.

The use of high-energy UV beams to crack the molecular bonds of bacteria in the malodorous gas, destroying bacterial nucleic acid (DNA), and then through the ozone oxidation reaction, to completely achieve the purpose of deodorisation and killing bacteria.

When the malodorous gas is input to the purification equipment by exhaust equipment, the purification equipment uses high-energy C-wave beam and ozone to carry out synergistic decomposition and oxidation reaction on the malodorous gas, so that the malodorous gas material is degraded and transformed into low molecular compounds, water and carbon dioxide, and then discharged to the outdoor through the exhaust pipe.

The use of special high-energy beam irradiation of malodorous gases, cracking malodorous gases such as: ammonia, trimethylamine, hydrogen sulfide, methyl hydrogen sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, and styrene, sulfide H2S, VOC, benzene, toluene, xylene, molecular chain structure, so that the organic or inorganic polymer molecular malodorous compounds molecular chain, irradiated by high-energy ultraviolet beams, degraded into low molecular compounds such as CO2, H2O, etc.