Thermal and Catalytic Abatement
Thermal oxidizers come in the simplest form with the ability to treat waste gases in lower volumes and higher organic concentrations. The complexity increases, but with many advantages, when internal heat recovery is incorporated in Thermal Recuperative Oxidizers and Regenerative Thermal Oxidizers (RTOs). Any of the thermal units can be provided in Catalytic form with the addition of base or precious metal catalyst which effectively lowers the temperature at which the hydrocarbon bonds break apart to create water vapor (H2O), carbon dioxide (CO2), and heat energy.
A version of thermal abatement often deployed by CleanCap is in the form of a Vapor Combustor Unit (VCU), also known as an Enclosed Flare. In this technology, waste gases are introduced into the device as an inert gas mixture prior to being mixed with enough oxygen for proper combustion. The reaction is not visible. However, Flares provided by CleanCap do have a visible flame as the inert gas exits the top of the stack and uses ambient air oxygen to achieve partial combustion.