Clean Air Technologies – Service, retrofit and modernization

The ESP uses electrical forces to remove Particulate Matter (PM) from the flue gases. A high voltage source, generating a corona current, charges the PM which migrate to the collecting plate. PM are removed from the plate by a knocking action.

As for the dry ESP, the wet ESP uses electrical forces to remove Particulate Matter (PM) from the flue gases. A high voltage source, generating a corona current, charges the PM which migrate to the collecting plate. PM are removed from the plate by flushing water.

The Fabric Filter (or baghouses or bag filters) uses a filter media to separate Particulate Matter (PM) from the flue gases. The Particulate Matter are deposited at the surface of the fabric filter which may be made of different materials depending on the flue gas physical and chemical composition. The dust is removed periodically when cleaning the bags.

Hybrid Filter is a combination of ESP and FF with several configurations (in serie and in the same casing (integrated) or in separated casings in serie or in parallel (separated)).

A bag is more than just a wear part - it is a critical factor in the performance of the filter system. Delivering sustainable Quality for Superior Filter Performance.

In the DSI system, calcium or sodium-based alkaline sorbents are injected into the flue gas to remove acid gases (SO2,SO3/H2SO4, HCl), volatile organic compounds (VOCs), and metals (Hg, …). Injection of the sorbent is simple and takes place between the air heater and the PM control equipment.

The semi-dry desulfurization combines the injection of a suspension/solution of alkaline reagent into the sulphur-rich flue-gases before removing the resulting product by filtration (Fabric Filer or Electrostatic Precipitator).

The semi-dry desulphurization combines the injection of a suspension/solution of alkaline reagent into the sulphur-rich flue-gases before removing the resulting product by a Fabric Filter.

In the SNCR system, a reducing agent, typically ammonia or urea, is used to convert the NOx emissions (without catalysts) into harmless nitrogen (N2) and water vapor (H2O).

The chemical absorption process has been used since the 1930s for the capture of CO₂ from ammonia plants for food applications. Today it remains the most mature process for capturing CO₂ in large quantities.