Measurement and Correlation of the Activity Coefficients of H+ And HSO3- in Concentrated Aqueous Solutions of NaCl

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Mamoru Iwasaki¹  Seiya Hirohama¹  Dai Takeda¹  Kazushige Kawamura¹ 

[1] Chiyoda Corp.

关键词: Thermodynamics;    Vapor-Liquid Equilibria;    Activity Coefficient;    Electrolyte Solution;    Flue Gas Desulfurization;   

DOI  :  10.1252/jcej.29.588

来源: Maruzen Company Ltd

【 摘 要 】

References(9)The activity coefficients of HSO3– and H+ were determined in concentrated aqueous solutions of NaCl in order to provide a theoretical basis for using sea water as a solvent in flue gas desulfurization processes.The activity coefficient of HSO3– was determined at 313 K and 323 K by measuring the pH of mixtures of NaCl, H2O and small amounts of NaHSO3 at a known partial pressure of SO2. The activity coefficient of H+ was determined over a temperature range of 296 K–333 K by measuring the pH of mixtures of NaCl, H2O and small amounts of HCl.As the ionic strength increased, the activity coefficient of HSO3– decreased while that of H+ increased. The Pitzer Equation could correlate the activity coefficients of both species with reasonable accuracies for practical use.

【 授权许可】

Unknown