Combined/multi-stage flue gas cleaning systems

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.

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.

ANDRITZ provides novel scrubber system (FGDplus) that maximizes SO2 and dust removal while keeping energy inputs to a minimum.

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.

Technology for power stations, Energy-from-Waste plants, and industrial plants