Catalytic air pollution control systems for the removal of volatile organic compounds

Catalytic methods to treat hazardous air pollutants are experiencing a comeback. In the past 15 to 20 years they were often replaced by other thermal oxidation processes on account of the catalysts' susceptibility to poisoning and/or masking. Catalytic oxidation of VOCs owe their comeback to two persuasive benefits: low energy needs and notably lower NOx emissions.

The air pollution control specialist, Environmental and Energy Systems (EES), a business unit of the Dürr machinery and plant manufacturing group, prefers to apply catalytic methods when treating air pollutants in the chemical processing industry. Classical areas of application are abatement systems used for PTA production facilities, for calcination processes (catalyst manufacturing) and for manufacturing of maleic anhydride, olefines, natural rubber and acrylic.