This substance can also be found in exhaust air corresponding to the partial pressure where low boiling substances are used in the process. However, also higher boiling substances, such as toluene, for example, are contained already in noticeable amounts in the air at environmental temperature.

While thermal treatment can solve the exhaust air problem, recovery of the escaping substances can only occur through adsorption, condensation and absorption. We offer a variety of solutions for these procedures.

Depending on the target components, concentration and the accompanying substances we select the most optimum process. Of course the legal limit values are reached.

• Drying of SO2 or Cl2 using sulphuric acid
• Absorption of HCl, HBr, SO3, and Cl2, Br2, SO2
• Combined absorption of HCl and SO2
• NOx-Absorption
• Absorption of ethylene oxide or ammonia
• Absorption and recovery of volatile organic components VOC
• Solvent Condensation Unit
  

Two stage scrubber