Chemical Engineering

Program Part A - Recalls on the balance of matter and energy Mass conservation principle. Integral material balances for non-reactive systems. Application to the modeling of process equipment. Calculation of degrees of freedom. Energy conservation principle. General formulation of the balance equation of power. Formulation of the energy conservation principle in enthalpy terms. States of reference. Calculation of enthalpy changes for transformations associated with changes in temperature, pressure or physical state. Application to equipment modeling of process. Part B - Calculation of the single equilibrium stage Introduction to separation operations. Material and energy separation agents. Selection criteria. Stages of separation and stages of balance. Single stage analysis of equilibrium. Formulation of the matter and energy balance equations. Relations of balance between phases for ideal and non-ideal systems. Graphic and analytical procedures for the calculation of the liquid-vapor and gas- equilibrium stages liquid. T – x – y and x – y diagrams for the representation of the liquid-vapor equilibrium. Enthalpy diagram. Triangular and x – y diagrams for the representation of the liquid-liquid equilibrium. Calculation of the liquid-liquid equilibrium stage. Adsorption: analytical expressions and experimental determination of the isotherms of adsorption. Graphical and analytical procedures for the calculation of the gas-solid equilibrium stages and liquid-solid. Multi-stage operations. Cross-current and counter-current configurations. Graphical procedures and analytical calculation. Part C - Stages of counter-current equilibrium Multistage absorption in countercurrent. Work line and equilibrium curve. Conditions of limit and effective operation. Graphical determination of the number of stages of equilibrium. Effect of operating variables and the nature of the solvent. Verification calculation. Absorption factor and Kremser relation. Countercurrent multistage distillation. Graphic and analytical methods for the determination the number of equilibrium stages. Fenske equation. Limit operating conditions and effective. Design and verification calculation. Effect of operational variables. Exhaustion-only and enrichment-only equipment. Equipment with direct introduction of liquids or saturated vapors. Equipment with condensers or reboilers partial.

Fundamentals of chemical thermodynamics and equilibria between phases. Fundamentals of differential and integral calculus. Numerical solution of equations and systems of equations.

Texts adopted Recommended texts  PART A: Sandler S.I., Chemical and Engineering Thermodynamics, Wiley & Sons, NY (1999)  PARTS B and C: Treybal R.E., Mass-Transfer Operations, Mc-Graw Hill, NY (1980)  Notes provided by the teacher

Lectures and in-depth numerical exercises, during lesson times.

Active participation in lessons and, above all, in practical exercises on the exam texts is strongly recommended.

Written exam (duration of about 30 minutes), which if sufficient (from 18/30 upwards) allows to be admitted to the oral exam (duration of about 15 minutes).

Sandler S.I., Chemical and Engineering Thermodynamics, Wiley & Sons, NY (1999) Treybal R.E., Mass-Transfer Operations, Mc-Graw Hill, NY (1980)

Lectures and in-depth numerical exercises, during lesson times.