Enhanced All-Dry Scrubber, EAD
The Mitsubishi Hitachi Power Systems Enhanced All-Dry (EAD™) scrubber is a simple and flexible technology for multi-pollutant control. Obtained through a license agreement with Solios Environment (formerly Procedair), this patented dry scrubber technology was developed in the 1980s and is the original “Enhanced” All-Dry process. The process employs an entrained flow absorber, lime/ash humidifying mixer and our fabric filter technology to effectively remove pollutants in utility applications to meet new MATS / CSAPR requirements. We are applying the EAD™ scrubber technology using a modular approach which provides both greater operating flexibility and reliability.
Enhanced All-Dry (EAD)™ Scrubber System
Main Features of EAD™
Simple and Reliable Process
External Reagent Humidification
Low Pressure Drop and Power Consumption
How Does Enhanced All-Dry Scrubber Work?
Entrained flow absorber– no fluidized bed
Venturi nozzle – promotes turbulence / mixing
Humidified ash and lime – enhances reactions on sorbent surface and cools flue gas to optimum reaction temperature
Solids recirculation – produces very high apparent stoichiometric ratio
Vertical column - additional reaction time and complete drying
Fabric filter – collection, additional reaction, recycle
The EAD™ scrubber features a compact, economical design, does not require lime slurry preparation and produces a dry byproduct.