How to deal with butanone exhaust gas

Butanone is an organic solvent and organic synthetic raw material, widely used in paint, paper, printing, textile and synthetic rubber industries. Butanone exhaust has an irritating effect on human eyes, nose and throat, how to deal with butanone exhaust? The following Everest blue editorial introduced several common exhaust gas treatment methods, take a look~

Butanone exhaust gas adsorption method

The butanone exhaust gas is purified by passing through the adsorbent layer using the high efficiency adsorption function of activated carbon, silica gel, molecular sieve and other adsorbents on the organic components in the exhaust gas. Commonly used adsorption technology using the adsorption medium is activated carbon (rod or granular activated carbon). Organic waste gas management method adsorption method of high purification efficiency (following the saturation of the adsorbent, purification efficiency gradually reduced), high operating costs (the cost of replacing the adsorbent is very high), the investment cost is low, to the environment to bring the secondary pollution of solid waste. At present, it is mainly used in the purification and treatment of low concentration organic waste gas with large air volume, low concentration (≤800mg/m3), no particles, no viscous material and normal temperature.

Butanone exhaust gas condensation method

Reduce the temperature of the exhaust gas, so that the harmful substances condense, coalesce and separate from the exhaust gas to achieve the purpose of purification. This method has large investment and high energy consumption, and is not suitable for treating exhaust gases with large air volume.

Low-temperature plasma treatment of butanone exhaust gas

Using the medium to block the discharge process, the plasma generated inside the particles rich in high chemical activity, such as electrons, ions, free radicals and excited state molecules, etc., the pollutants in the butanone exhaust gas and these active groups with high energy to react, and z finally converted to CO2 and H2O and other substances, so as to achieve the purpose of purifying the exhaust gas. Currently on the market a lot of low-temperature plasma nominal power exhaust gas, the actual ionisation of the air to produce ozone, the use of ozone's strong oxidative properties of exhaust gas treatment. Butanone waste gas management, organic waste gas management methods low temperature plasma discharge effect and the humidity of the air has a great relationship, the greater the humidity the greater the energy consumption, a large amount of energy will be absorbed by the water molecules, thus reducing the ionisation effect. The use of low temperature plasma treatment of exhaust gas, exhaust gas directly through the discharge system, for flammable and explosive gases pose a great safety hazard, easily caused by fire and other major safety accidents.

Butanone exhaust gas combustion method

The combustion method is only in the volatile organic compounds in the high temperature and sufficient air under the premise of complete combustion, decomposition into CO2 and H2O. combustion method for all types of organic waste gas, can be divided into direct combustion, thermal combustion and catalytic combustion.

Emission of exhaust gas concentration greater than 5000mg / m of high concentration of exhaust gas, generally use direct combustion method, the method of VOCs exhaust gas as a fuel for combustion, combustion temperature is generally controlled at 1100 ℃, the exhaust gas treatment efficiency is high, can reach 95% a 99%.

Butanone waste gas management, organic waste gas management methods, thermal combustion method is suitable for the treatment of concentration in the 1000-5000 mg/m of waste gas, the use of thermal combustion method, the concentration of VOCs in the waste gas is lower, with the help of other fuels or combustion gases, thermal combustion requires a lower temperature than direct combustion, about 540-820 ℃. Combustion method to deal with VOCs exhaust gas treatment efficiency, but VOCs exhaust gas if it contains S, N and other elements, combustion of the exhaust gas generated directly outside will lead to secondary pollution.

Butanone waste gas UV photolysis treatment

Through the use of UV wavelength range of 170-184.9nm vacuum ultraviolet light, the destruction of organic waste gas molecules of the chemical bond, so that the cleavage of the formation of free atoms or groups; at the same time, through the cleavage of oxygen in the mixing of the air, so that the formation of free oxygen atoms and the combination of natural ozone. The strong oxidising ozone (O3) reacts with the atoms of the organic waste gas molecules to form H2O and CO2, and the whole process takes no more than 0.1 second, and the purification effect is related to the bond energy of the waste gas molecules, the concentration of the waste gas and the oxygen content. The entire purification process does not require the addition of any chemical additives or special restrictions on the prerequisites.

UV photolysis with high efficiency, can reach more than 95%; adaptability, can adapt to the low concentration, atmospheric volume, different organic waste gas and odour gas material purification; product function is not chaotic, the operation is not chaotic and reliable, every day can be 24 hours of continuous work; low operating costs, low energy consumption of the equipment, no need for special management and maintenance, only need to be inspected on a regular basis. UV photolysis due to the use of the principle of photolysis, the module adopts explosion-proof treatment, reducing the safety and security of the module. Module to take the explosion-proof processing, reduce safety hazards, fire prevention, explosion-proof, anti-erosion function is high, the equipment function is safe and uncluttered, especially for pharmaceutical, gas and oil extraction, petrochemical and other explosion-proof requirements of the industry.