Alkaline injections to reduce SO3 (and SO2) emissions is a common process now. However, according to the chemical compound used (NaOH, MgO, Mg(OH)2, Na2CO3...), results will vary to a large range.
I actually experiment a new range of chemicals which demonstrate the same SOx sorption behaviour...
Concerning the conversion of ppmv to mg/Nm3, they are two factors to consider: the temperature/pressure and the O2%.
Nm3 stands for "normal" or "standard" cubic meter from the perfect gas equation. You therefore have to correct both parameters to obtain an accurate value.
Temperature and...
