These two methods are called wet scrubbing, and carbon polishing.
2.
Approximately 79 % of the units, representing about 199 gigawatts of capacity, were using lime or limestone wet scrubbing.
3.
When wet scrubbing with a Mg ( OH ) 2 ( magnesium hydroxide ) slurry, the reaction produces MgSO 3 ( magnesium sulfite ) and may be expressed in the simplified dry form as:
4.
When wet scrubbing with a Ca ( OH ) 2 ( hydrated lime ) slurry, the reaction also produces CaSO 3 ( calcium sulfite ) and may be expressed in the simplified dry form as: