Operating Mode The operating cycle for the Cor-Pak® oxidizer is very simple. VOC laden process air is drawn from the application and fed through the tubes of the Cor-Pak® heat exchanger. This preheats the process air. Then the flow passes through the profile plates and the burner. This completes the heating of the process air to the oxidation temperature (typically 1400-1500°F). After the burner, the flow passes through the the insulated oxidation chamber. The length of the oxidation chamber is designed to provide the required retention time (typically 1 - 1½ seconds) to allow the VOC to completely oxidize. By the time the flow has passed through the oxidation chamber, it is clean, but hot. Then, it goes across the tubes of the Cor-Pak® heat exchanger, and renders off a large portion of its heat. Finally, the cooled, cleaned air exits the unit through the stack. This graphic shows a two pass arrangement which is typical for our Silica-Designed Cor-Pak® Oxidizers, but there are many other unit arrangements based on the individual requirements for an application. Some of the variables that are not shown on this graphic are: » Number of passes in the heat exchanger (from 1-5) » Orientation (vertical or horizontal) » Secondary heat recovery (thermal oil system, secondary boiler,   or secondary Cor-Pak® heat exchanger for plant air or process   preheat) » Hot Gas Bypass for high VOC loading conditions › Locate a Salesperson