Dry injection of sodium bicarbonate or trona is a low-cost solution for HCl mitigation. In a DSI system, sodium bicarbonate or trona is injected directly into hot flue gas. After injection, the sorbent is calcined into porous sodium carbonate. DSI systems using sodium bicarbonate in Europe have shown that over 99 percent of HCl and 95 percent of SO2 removal have been achieved.
The FPD580 range of stack gas flow metering solutions will, when combined with an appropriate ABB gas analyzer, form a complete CEMS package for the measurement of mass flow rate of pollutants into the environment.