Recuperative Catalytic Oxidizers
For certain applications, Glenro recommends the use of a catalytic oxidizer to achieve the required VOC abatement. The use of a catalyst causes the oxidation reaction to occur many times faster than thermal conversion and at much lower temperatures. This means that the catalytic oxidizer will be smaller in size and will generally have a lower initial cost and operating cost as compared to a recuperative thermal oxidizer. Glenro engineers these systems for maximum efficiency and lowers operating costs by integrating primary and secondary heat recovery technologies.
Principle of Operation
Exhaust air from the process is ducted to the catalytic oxidizer system, passing through a primary heat exchanger and then into the auxiliary burner chamber where the air is heated to the specific VOC catalyst reaction temperatures (typically 500-650 degrees F). The heated exhaust then passes trough a catalyst bed where a rapid chemical oxidation reaction occurs. The air leaving the catalyst carries the additional heat released due to this oxidation process and this leaving energy is used for heat recovery; both primary and secondary.
Glenro uses high quality platinum group metal catalysts. Destruction efficiencies up to 99% can be achieved.
Heat Recovery for Other Uses
In most catalytic oxidizer applications, additional energy is available for secondary heat recovery purposes. The discharge air temperatures are not as high when compared to a recuperative thermal design, however, Glenro will custom design each application to take maximum advantage of the energy that is available, resulting in a much more attractive ROI.