Main reaction when using hydrated lime and Sodium bicarbonate respectively
Ca(OH)2 ＋ 2HCl → CaCl2 ＋2H2O
Ca(OH)2 ＋ SO2 ＋ 1/2 O2 + 2H2O → CaSO4 ∙2H2O ＋H2O Ca(OH)2 ＋ 2HCl → CaCl2 ＋2H2O
NaHCO2 ＋ HCl → NaCl ＋H2O ＋CO2
2NaHCO2 ＋ SO2 ＋ 1/2 O2 → Na2SO4 ＋H2O ＋2CO2