کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10386197 | 882942 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A general and applied thermodynamic model for the characterisation of saline systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Aqueous solutions are involved in many processes. Modelling is now becoming a necessary tool for processes simulation or optimisation. In this paper, the model is based on a thermodynamic description of the electrolytic system. The mathematical formulation includes: chemical or ionic equilibriums, physical equilibriums, between the solid phases that might be present, mass balances and an electroneutrality equation. Due to the electrostatic forces, these kinds of systems cannot be successfully described by the concept of an ideal solution. The calculation of activity coefficients is required. However, choosing a group contribution method to calculate the activity coefficient conserves user friendliness. The non-linear system obtained is solved by using Newton Raphson's method. The model is validated on several examples with concentrations of salts being up to saturation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 175, Issue 3, 30 May 2005, Pages 269-278
Journal: Desalination - Volume 175, Issue 3, 30 May 2005, Pages 269-278
نویسندگان
P. Cézac,