Pesticide / Pharmaceutical / New Materials

In the field of fine chemical industry, such as pesticides, pharmaceuticals, new materials, VOCs emission have the characteristics of “three many and two high” : multiple substance types (>200 kinds of organic matter), multiple emission modes (continuous/intermittent mixed emission), and a large number of unknown components; High toxicity hazards (half of the substances LD50<500mg/kg), high treatment difficulty (chlorine/nitrogen substances accounted for more than 40%).

Analysis of the Characteristics of Typical Emission Sources

• Synthetic process section
the exhaust gas of reactor contains unreacted monomer, the gas from the top of rectification tower carries high boiling point substance, and the exhaust gas of centrifuge contains organic solvent mist droplets
• Preparation processing section
spray drying tail gas containing drug dust-VOCs complex pollutants, and ethanol is emitted during the coating process
• Auxiliary system
the non-condensable gas from the solvent recovery unit, and the volatile nitrogen heterocyclic compounds from the cleaning wastewater pool