希薄アンモニア水による石炭ガス脱硫法の研究 (I)

アンモニア水に対するHCN, H₂SおよびCO₂の溶解平衡

抄録

Reaction factor β is essential to analyse the performance of gas purification by means of chemical absorption. However, it is very difficult to calculate β which is expressed by complicated functions composed of several factors; order of chemical reaction, rate constant for chemical reaction, equilibrium constant for reaction, diffusivity of solvent gas and so on.
Therefore, simple calculation method for β was studied in this work, and approximate equations were introduced to estimate β by means of H^* and H. H^* is ordinary Henry's law constant and H is Henry's law constant with chemical reaction.
For HCN-NH₃-H₂O system, Henry's law constant with chemical reaction was measured by dynamic method. In case of H₂S-NH₃-H₂O and CO₂-NH₃-H₂O systems, constants were calculated based on Van Krevelen's experimental data.