H. Bai et al., SO2 REMOVAL BY NH3 GAS INJECTION - EFFECTS OF TEMPERATURE AND MOISTURE-CONTENT, Industrial & engineering chemistry research, 33(5), 1994, pp. 1231-1236
The removal of SO2 by NH3 gas injection at various temperatures and mo
isture contents has been studied experimentally. The product compositi
ons of the NH3-SO2-H2O vapor reactions were also reported. A thermodyn
amic analysis was carried out to predict the SO2 removal as well as th
e product compositions. Both the experimental results and thermodynami
c analysis indicated that SO2 removal and the product compositions are
sensitive to the reaction temperature. Moisture content, once in larg
e excess of the stoichiometric requirement, does not have a strong eff
ect on the product compositions but plays an important role in the SO2
removal.