Pesticide / Pharmaceutical / New Materials

In the field of pesticide, medicine, new materials and other fine chemical industry, VOCs emission shows the characteristics of “three more and two high” : multiple substance types (>200 kinds of organic matter), multiple emission modes (continuous/intermittent mixed emission), and unknown components; High toxicity hazards (half of the substances LD50<500mg/kg), high processing difficulty (chlorine/nitrogen substances accounted for more than 40%).

Analysis of characteristics of typical emission sources

• Synthesis process section
the exhaust gas of reactor contains unreacted monomer, the overhead gas of rectification tower carries high boiling point substance, and the exhaust gas of centrifuge contains organic solvent droplets
• Preparation processing stage
spray drying tail gas containing drug dust–VOCs complex pollutants, the coating process emissions ethanol
• Auxiliary system
solvent recovery device does not condense gas, cleaning wastewater pool volatile nitrogen heterocyclic compounds