Air Stream Moisture Removal
Hello All,
I have a potentially major issue brewing that needs some help but I'm at a loss. In the process of expanding polystyrene with steam, VOCs are given off that must be captured and sent to a thermal oxidizer. The air stream has high moisture content due to steam. We pass the air through a condenser to drop most of it out, but I am having significant amounts of it still condensing and collecting as it gets to the oxidizer that is outside. Question is how do I dry this air enough so that it doesn't collect at my oxidizer? This is roughly 2,500 cfm at about -3.0" w.c. SP. Are there methods other than expensive refrigeration to dry it? The condensers work by passing the steam through a stainless steel "wool" media which is cooled by process water, thereby condensing the steam and the "dry" air exits the top of the condenser and out to the oxidizer. Problem is it's not dry enough and there's still enough moisture that when it cools it condenses and collects in the oxidizer. I am seeing significant corrosion at the oxidizer due to this. I have spoken with various moisture management companies but mechanical/filtration means only remove droplets and not vapor. Any suggestions?