Concentrator/Adsorption Systems

For large air flows with low VOC concentrations (in parts per million levels, ppm), direct thermal or catalytic oxidation may result in high operating and capital costs. For this application concentrators can be very effective and most suitable.

A concentrator consists of vessels or a vessel with multiple compartment, which house a media with great affinity for adsorbing Hydrocarbons. The media can be Carbon or a Molecular Sieve.

 The VOC laden air passes through the vessel(s) and the VOC's are adsorbed by the media and clean air is released into the atmosphere. The adsorption process continues for a period of time until the media is saturated. The air stream is then redirected into another vessel or set of vessels. The saturated vessel is desorbed by passing steam or hot air through it at a lower flow rate.

The VOCs are now concentrated and leave the regenerating vessel with high concentrations, the regenerating system is designed so the concentration will not exceed 45% of the Lower Explosive Limits (LEL). The concentrated stream is then directed into a small thermal oxidizer for VOC destruction. The hot exhaust is utilized to generate steam required for carbon regeneration or hot air for molecular sieve regeneration.

If solvent recovery is desired the highly concentrated regenerating stream can be directed through condensers and decanters for product recovery.

Products

• Regenerative Thermal Oxidizers (RTO’s)
• Recuperative Thermal Oxidizers
• Heat Exchangers
• Condensing Boilers Systems
• Condensing Economizers Systems
• Permanent Total Enclosures (PTE’s)
• Steam Generating Thermal Oxidizers
• Flares (Low NOx)
• Custom Fabrication & CAD Design
• Concentrator/Adsorption Systems
• Collection System Design & Fabrication
• Catalytic Oxidizers
• Ancillary Products
  • Boilers
  • Blowers
  • Burners (low NOx)
  • CEM (Continuous Emission Monitoring)
  • Dampers, Ducting & Valves
  • Dust Collectors
  • Filters
  • LEL (Lower Explosive Limit) Monitoring
  • Primary Heat Recovery
  • Secondary Heat Recovery
  • Scrubbers
  • Waste Heat Boilers