- 著者
- Seiya Hirohama Dai Takeda Mamoru Iwasaki Kazushige Kawamura
- 出版者
- The Society of Chemical Engineers, Japan
- 雑誌
- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (ISSN:00219592)
- 巻号頁・発行日
- vol.29, no.4, pp.588-593, 1996 (Released:2005-03-15)
- 参考文献数
- 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.