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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
A general and applied thermodynamic model for the characterisation of saline systems
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
نویسندگان
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