Clean Air Technologies for Waste to Energy – Refuse Derived Fuel – Sludge – Industries

The global economy is in constant need of power, which is still mainly provided by coal, oil and gas – fossil fuels that are finite and harmful to the environment over their whole value chain. Other more sustainable resources such as municipal waste or sludge have started to establish their position in the industry and are gaining more attention now due to the global effort to develop and install solutions that will minimize CO2 emissions.

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.

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.

ANDRITZ dry flue gas cleaning systems meet the requirements for complying with the world’s strictest emissions legislation, the desire for low consumption of additives, the need for minimal residues, and the installation simplicity of a compact design.

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.

ANDRITZ provides you with a full range of efficient combined/multistage technologies to simultaneously reduce your SOx, mercury, other heavy metals and Particulate Matter (PM) emissions.

ANDRITZ provides you with a full range of efficient technologies to reduce down to single digit your Particulate Matter (PM) emissions.

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).

ANDRITZ is accelerating its activities to deploy with its customers technologies reducing carbon dioxide (CO2) emissions.