VOC Adsorption systems are used for the control of VOC emissions. The VOC control technology can be utilized in many different chemical processes and environmental control applications. Removal of the VOCs by adsorption onto granular activated carbon (GAC) using adsorption columns is the most efficient practice among the various water treatment unit processes. The presence of water has a strong impact on VOC adsorption. The water affects of the VOC adsorption is controlled by decreasing the retention to a greater extent for aromatic & aliphatic compounds by linearizing the isotherms. Adsorption is used in hundreds of applications by a variety of industries, from manufacturing, food processing to environmental engineering.
A typical VOC catalyst comprises platinum group metals mixed with a high surface area alumina-based wash coat and applied to the surface of a honeycomb support structure or substrate of fabricated stainless steel foils (metal monolith) or extruded cordierite (ceramic monolith) or ceramic pellets or beads. The precious metals are applied in such a manner to provide as many reaction sites as possible in a stable configuration to ensure high performance and long life. It is a specifically designed washcoat suitable for VOC applications.