Before revision: Na2SO3 + SO2 + H2O → 2NaHSO3 2NaHSO3 → Na2S2O5↓ + H2O Na2S2O5 + H2O → 2NaHSO3 2NaHSO3 → Na2SO3 + SO2 + H2O In its initial version (Crane Station, Maryland, 1968) the process was based on potassium sulfite, but the economic prognosis was poor.
After revision: in the scrubberin the regeneratorNa2SO3 + SO2 + H2O → 2NaHSO3 2NaHSO3 → Na2S2O5↓ + H2O Na2S2O5 + H2O → 2NaHSO3 2NaHSO3 → Na2SO3 + SO2 + H2O In its initial version (Crane Station, Maryland, 1968) the process was based on potassium sulfite, but the economic prognosis was poor.