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Application of gas sensors in the purification of industrial waste gas in factories

2021-09-07 14:03
In recent years, the monitoring of toxic gases in the production process of the chemical industry has attracted more and more attention from factories. Nitrogen dioxide (NO2) is an important industrial gas, which can be used in industrial water treatment as a sterilization and disinfectant, as well as in the bleaching of pulp and fiber, the refining of flour, oil and sugar, and the dehairing of leather. At the same time, nitrogen dioxide is one of the toxic gases, and long-term exposure to an environment with a NO2 concentration of 40 to 100 mg/m3 can seriously affect health. Therefore, in order to prevent the nitrogen dioxide gas from harming the health of workers and affecting production safety, real-time monitoring of the nitrogen dioxide gas in the factory is necessary.
 
Sulfur dioxide (SO2) is a common, simple, and irritating sulfur oxide. Since coal and petroleum usually contain sulfur, sulfur dioxide is formed when burned. Sulfur dioxide (SO2) is a gas that is more harmful to the environment and requires a sulfur dioxide sensor to measure
 
Particulate waste gas pollutants are mainly polluting smoke and dust produced in the production process, and their sources are mainly cement plants, heavy industrial material production plants, heavy metal manufacturing plants, and chemical plants.
 
Common exhaust gases include carbon dioxide, sulfur dioxide, hydrogen sulfide, fluoride, nitrogen oxide, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (fog), lead mercury, smoke and so on.
 
Industrial waste gas purification is a task that specializes in pretreatment of waste gas generated in industrial sites such as factories and workshops, and then discharges that meet the national waste gas emission standards. It is usually necessary to test the purified exhaust gas to ensure that the exhaust gas meets the emission standards.
 
When monitoring various gases in complex gases, you can choose to use detection instruments that monitor multiple gases at the same time, or install corresponding gas sensors, such as nitrogen dioxide NO₂ sensors, sulfur dioxide SO₂ sensors, etc. They can also be used directly in industry On the exhaust gas detector. Mixsen recommends the electrochemical gas sensor MIX8421 SO2 sensor, MIX8420 NO2 sensor, which is very suitable for industrial environment nitrogen dioxide, sulfur dioxide gas portable instrument, etc.
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