THERMODYNAMICS OF CHEMICAL ENGINEERING II

Course objectives

The course builds on the basic concepts of Fluid phase equilibria developed in the first level course (Chemical Engineering Thermodynamics) and is aimed to provide the students with the conceptual tools for modelling complex phase equilibria. In particular are studied higly non ideal systems in the presence of high molecular weight substances and/or electrolytes.The students are expected to be able to analyse complex situations by considering the non ideality of different component in each phase. The students should be able to select the best methodology for the modelization of phase equilibria by utilizing an approach based on modern equations of state or an approach based on excess function and activity coefficient models.

Channel 1
MARIA ANNA MURMURA Lecturers' profile

Program - Frequency - Exams

Course program
Thermodynamics of multicomponent mixtures. definition of partial molar thermodynamic property. Eulero's theorem. Gibbs-Duhem equation: study of binary sistems. Integral and differential thermodymanic consistency tests. Definition of mixing and excess properties. Athermal and regular solutions. Redlich-Kister expansion and activity coefficients models. Local composition models: Wilson, NRTL, Uniquac equations. Methods to predict activity coefficients: Unifac model. Solutions theories: Van der Waals theory, solubility parameter and regular solutions. Chemical theories: activity coefficients for associated and solvated. Apparent and true chemical species. Liquid-liquid equilibrium: equilibrium and stability condition: evaluation of spinodal and binodal curves. Liquid-vapor evaluation by means of equations of state. EOS of Soave Redlich Kwong and Peng Robinson: methods to evaluate pure components parameters. Mixing rules. High pressure systems. Gas-liquid equilbrium: temperature and pressure effect on solubility. Electrolyte solutions: weak and strong electrolytes. Mean ionic chemical potential. Mean ionic activity coefficients. Osmotic coefficient . Gibbs duhem equation. Vapor liquid equilibria of volatile electrolytes. Solubility of electrolytes. Ebullioscopic and crioscopic effect. Osmotic pressure. Models for activity coefficients evaluation: Debye-Huckel and Pitzer models. Curve di distillazione.
Prerequisites
The course is based on knowledge acquired in Chemical Engineering Thermodynamics I
Books
Stanley I. Sandler - Chemical, Biochemical and Engineering Thermodynamics Fourth Edition Jhon Wiley & Sons
Teaching mode
Classes will be held according to university regulations and government laws
Frequency
Attendace is elective
Exam mode
The exam will consist in both an exercise to be solved with a process simulator and questions on the material covered in class
Lesson mode
Classes will be held according to university regulations and government laws
  • Lesson code1041588
  • Academic year2024/2025
  • CourseChemical Engineering
  • CurriculumIngegneria Chimica
  • Year1st year
  • Semester1st semester
  • SSDING-IND/24
  • CFU6
  • Subject areaIngegneria chimica