Application of the Non-Primitive MSABased Models in Predicting the Activity and the Osmotic Coefficients of Aqueous Electrolyte Solutions

Publish Year: 1383
نوع سند: مقاله کنفرانسی
زبان: English
View: 2,177

This Paper With 15 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

NICEC09_373

تاریخ نمایه سازی: 14 فروردین 1386

Abstract:

The Non-primitive MSA based models (NP-MSA) were used to correlate the individual and the mean ionic activity coefficients of the symmetric and asymmetric aqueous electrolyte solutions. The results of the models for the mean ionic activity coefficients were directly used to calculate the osmotic coefficient for the electrolyte solutions studied in this work. In the NP-MSA models, the Ghotbi-Vera and the Boublik- Mansoori-Carnahan-Starling-Leland hard sphere equation of state as the reference system coupled with the non-primitive mean spherical approximation model (NP-GVMSA and NP-BMCSL-MSA models respectively). In correlating the mean ionic activity coefficients of electrolyte solutions, while the hard sphere diameters for anion were treated as a concentration-independent adjustable parameter, the diameters for cation were assumed to be concentration dependent. In the use of the non-primitive MSA-based models in correlating the individual ionic activity coefficients of electrolyte solutions, both anion and cation diameters were considered to be concentration dependent. The results for the mean ionic activity coefficients obtained from the NP-GV-MSA model compared favorably with those of the NP-BMCSL-MSA model produced in this work and also with those of NP-BMCSL-MSA available in the literature. It was shown that the NP-GV-MSA model more accurately calculate the mean ionic activity and the osmotic coefficients than those obtained from the NP-BMCSL-MSA models.

Keywords:

electrolyte solution , non-primitive model , means spherical approximation , hard sphere , ionic activity coefficient and osmotic coefficient

Authors

Navid Seyfkar

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Ghazal Azimi

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Cyrus Ghotbi

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Vahid Taghikhani

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
  • G.W. Xu; C.F. Zhang; S.J. Qin; W.H. Gao and H.B. ...
  • A. Lopes; F. Farelo and M.I.A. Ferra, J. of Solution ...
  • H.N. Solimo; C.M. Bonati; J.L. Zurita and M.B. Gramajo de ...
  • C. Ghotbi; G. Azimi; V. Taghikhani and J.H. Vera Ind. ...
  • R.A. Robinson and R.H. Stokes, Electrolyte Solutions, second edition, Butterworths, ...
  • K.S. Pitzer, J. Solution Chem., 4 (1975) 249-265. ...
  • C.C. Chen, Computer Simulation of Chemical Processes in the electrolytes, ...
  • E.W. Funk, Ind. Eng. Chem. Process Des. Dev., 13 (1974) ...
  • T.W. Copeman and F.P. Stein, Fluid Phase Equilib., 30 (1986) ...
  • G. Azimi; C. Ghotbi and V. Taghikhani, AICHE J. submitted ...
  • H. Krienke and J. Barthel, Z. Phys. Chemie., 204 (1998) ...
  • J.A. Barker and D.J. Henderson, Chem. Phys., 47 (1967) 4714-4721. ...
  • E. Waisman and J.L. Lebowitz, J. Phys. Chem., 52 (1970) ...
  • L.J. Blum, Chem. Phys., 61 (1974) 2129-2133. ...
  • L. Blum; F. Vericat and W.R. Fawcett, J. Stat. Phys., ...
  • S. A. Adelman and J. M. Deutch, J. Chem. Phys., ...
  • D. Wei and L. Blum, J. Chem. Phys., 87 (1987) ...
  • Ch. Li; Y. Li; J. Lu and L. Yang, Fluid ...
  • W. Liu; Y. Li and J. Lu, Fluid phase Equilib., ...
  • C. Ghotbi and J.H. Vera, Can J. of Chem. Eng., ...
  • A. Santos; S. Bravo Yvste and M. Lopez de Haro, ...
  • C. Barrio and J.R. Solana, Mol. Phys., 97 (1999) 797-803. ...
  • J.-F. Lu; Y.-X. Yu and Y.-G. Li, Fluid Phase Equilib., ...
  • W.J. Hamer and Y.-C. Wu, J. Phys. Chem. Ref. Data, ...
  • J.F. Jr Zemaitis; D.M. Clark; M. Rafal and N.C. Scrivner, ...
  • R.A. Robinson and R.H. Stokes, Electrolyte Solutions, 2nd Edition, Butterworths, ...
  • A.L. Horvath, Handbook of Aqueous Electrolyte Solutions 1st ed., John ...
  • O. Sonhel and P. Novotny, Density of Aqueous Solutions of ...
  • Table 1. Cation and anion parameters and also the absolute ...
  • -0.502 -0.163 -0.239 -0.244 -0.218 0.134 2.439 8.855 ...
  • -0.610 0.101 0.249 0.130 0.229 0.257 ...
  • NaBr Na' 4.824 -0.020 -0.012 2.63 2.79 ...
  • نمایش کامل مراجع