Direct oxidation is a strong VOC treatment method, but it is not always the most economical first step when most of the exhaust stream is clean air mixed with diluted solvent vapor.
Fuel cost often becomes the real test of a VOC treatment system after installation. A system may meet the emission target, but if it must heat a huge volume of dilute exhaust every day, the operating cost can quickly become difficult to accept.
Factory teams often compare two familiar VOC capture routes first: zeolite rotor concentration and activated carbon adsorption.
