A blower introduces solvent laden fume to the oxidizer. The stream is pre-heated by exiting flue gas from the same system in a heat exchanger or recuperator. A burner then heats the air to the required temperature of 600° F. The air is then passed through a catalytic bed where the solvent laden air is converted to CO2 and H2O. The CO2 and H2O are then passed through the heat exchanger where incoming fume is preheated by the heat of the exiting flue gas. Finally, the clean flue gas is discharged into the atmosphere.