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Environmental System

System Description

The Rotor Concentrator is a pollution control device designed to remove high gas volume & low concentration volatile organic compounds (VOCs) from air streams. The system includes two process steps:

  • Concentration of the VOCs using a Hydrophobic Zeolite Rotor, and
  • Post treatment of the concentrated VOCs by thermal or catalytic oxidation.

Principles of Operation

  • Solvent laden air drawn through the Honeycomb rotor where VOCs are removed from the airstream.
  • After passing through the rotor, the cleaned air is discharged into the atmosphere.
  • The zeolite rotor turns continuously (1-6 rph) transporting adsorbed VOCs into a regeneration zone.
  • At regeneration zone, the VOCs are removed by a small heated air stream.
  • The regenerated zeolite is then rotated back into the process air stream.
  • The concentrate is typically sent to a small oxidizer where the VOCs are converted to H2O and CO2.
  • Heat exchangers are used to pre-heat the concentrate and provide the required heat needed to desorb the rotor and create additional fuel efficiency.

System Flowchart