GENERAL
As the name suggests, destructive technology is a process which is commonly used in the thermal treatment of: volatile organic substances; organic hazardous air pollutants; hydrocarbons; Hydrogen Sulfide; together with other smoke particulates and odour. Destructive technology is used across a wide range of industries and for a broad spectrum of uses within those industries.
WHY DESTRUCTIVE TECHNOLOGY?
The most common approach of destructive methods is either through incineration or oxidation technology, which are considered as regenerative. Other technology options available are: direct fired thermal oxidizers, catalytic and regenerative catalytic oxidizers, and flares. With their robust performance and ability to operate at a continuous cleaning efficiency of >99.95%, it is easy to see why they are considered the preferred technology. Furthermore, the introduction of a heat recovery system at the outlet of these units means the recovered energy can be used for other applications on sites.
TECH BRIEF
Catalytic Oxidizers (CATOX) use an industrial grade catalyst material to promote the chemical reaction between the air pollution and introduced oxygen at lower temperatures. As the air pollutant passes through the catalyst, not only is the air pollutant destroyed, but it is also converted to CO2, H2O and heat. Destruction efficiency is based on catalyst chamber temperatures and residence time. Due to the lower operating temperatures of the system, catalytic oxidizers have lower OPEX costs (especially energy) compared to thermal oxidation equipment, while still maintaining the same cleaning efficiency as thermal oxidisers.
Regenerative Thermal Oxidizers (RTO), unlike Catalytic Oxidizers, operate at much higher temperatures when it comes to the cleaning of air pollution streams. RTOs are designed for applications of high volume and low VOC concentration air pollutants. High temperature thermal oxidation is achieved when the air pollution: passes through the ceramic media; and is mixed and held at elevated temperatures in the combustion chamber. The rate of reaction is controlled by three factors: residence time, incineration temperature, and turbulence.
Contact us to confirm the correct selection for your application. We look forward to assisting you in your technology selection for your plant operation.