Air scrubber in the energy and biomass industry

Air Solutions Holland ensures that odour components released during all kinds of technical processes are neutralized again using a chemical scrubber. The generation of renewable energy, often involving the burning or fermentation of biomass, often creates many of these odour problems. An air scrubber also known as an air washer is a cleaning installation in which the air flow is brought into intensive contact with a washing liquid. The purpose of this type of installation is to let the odour components (often gaseous particles that cannot be separated with a filter) create a chemical reaction and transfer from the air stream to the washing liquid. Air Solutions scrubbers are therefore often used as an emission limiting technique for a lot of gaseous emissions.

The extent to which gaseous components can be transferred to the liquid phase depends on the solubility of these components in the washing liquid, temperature also plays an important role. By adding chemicals to the washing liquid, the harmful components are converted into other substances, which eventually dissolve more easily in the liquid. Adding chemicals that can react with the gases to be absorbed therefore considerably increases the efficiency of the washer. In addition to water (wet scrubbers), organic liquids are also used as absorbers to convert or neutralise the gases dissolved in the liquid.

In practice, an air scrubber consists of three parts: a contact surface for air to water exchange, a droplet eliminator and a recirculation tank with pump. In most cases the gaseous impurities react to form a salt, which easily dissolves in water. Because of this salt formation, all Air Solutions air scrubbers are made of industrial plastics (HDPE, PP and PVDF). The residual product of an air scrubber is therefore often a salt solution, which is discharged or evaporated for reuse.

Air Solutions Holland has experience with the following different gas scrubbers in the energy and biomass industry:

Quality marks:

• ISO 9002
• CE
• KIWA
• VLAREM
• DVS welding certification