Solvent Recovery from Air Streams

Solvents and VOCs can be effectively removed from air streams with DOWEX™ OPTIPORE™ polymeric adsorbents. These adsorbents feature:

• Highly cross-linked polymer matrix
• Unique pore size distribution
• High surface area
• Improved capacity for organic compounds
• Hydrophobic adsorbent surface
• Noncatalytic activity
• Spherical beads with good physical stability

DOWEX OPTIPORE V493 adsorbents are used in packed beds and fluidized bed systems. They are regenerated with hot air, steam or microwave energy.

For low moisture uptake in high humidity environments, Dow has developed a larger (1mm) particle size adsorbent called DOWEX OPTIPORE V503 resin.

DOWEX Polymeric Adsorbents

Product	Description	Type	Matrix	Surface Area (m2/g)	Available Forms
DOWEX OPTIPORE V493	Polymeric adsorbent resin is used for the concentration of chlorinated and organic solvents from air streams, particularly in fluid bed systems.	Adsorbent	Styrene-DVB, Macroporous	>1100
DOWEX OPTIPORE V503	Polymeric adsorbent is used for removal of chlorinated and organic solvents from humid air streams, particularly in fixed bed systems.	Adsorbent	Styrene-DVB, Macroporous	>1100