The definition of VOC sensor varies globally due to different regulatory, control or research needs of institutions and organizations. The standard in China is the ability to participate in photochemical reactions. Volatile organic compounds (VOCs) are “organic compounds that can participate in atmospheric photochemical reactions.”
From the point of view of environmental protection, VOCs mainly refers to a class of volatile organic compounds with active chemical properties. Common VOCs include benzene, toluene, xylene, styrene, trichloroethylene, chloroform, trichloroethane, diisocyanate (TDI) and so on.
There are many kinds of VOCs gas discharged in the chemical industry park, and the emission concentration is high. Not only flammable gases, toxic gases, but also some gases with peculiar smells exist, and the NOX reaction will form secondary aerosols, forming PM2.5, causing the regional ozone concentration to increase above supervision level. Therefore, VOCs pollution is the focus and difficulty of environmental governance in chemical industry parks.
Why VOCs control is a tough work?
It has difficulties from several main sources and also require strength on these aspects.
For VOCs pollution sources, we need to control and promote to replace raw materials. Especially in the automobile, furniture, machinery and other manufacturing. It is necessary to promote the substitution of raw materials with low VOCs content and the innovation of production process.
Portable VOC gas detector
At present, the field of VOCs processing is filled with low-temperature plasma, photocatalysis and other simple and inefficient equipment. As a result, we are unable to achieve emissions reductions. Therefore, we should use the portable VOC sensor to detect the excessive VOC gas alarm occasions. The detector is suitable for handheld fast and accurate detection and reading of volatile organic compounds in the field of gas concentration, temperature and humidity measurement and. Portable VOC gas sensor using PID detection principle, with high performance, humanized concept design.
JXCT Electronics has developed a high-performance Photoionization PID VOC Sensor which can detect and measure over thousand of VOCs gas. The detection range starts from 1ppb and is up to 10000 ppm, with extremely fast response speed and high resolution.