Description

Liquid-liquide extraction: Principle of liquid-liquid extraction, Ternary diagram principle, different configurations of liquid-liquid extraction: batch, co-current, cross currents, counter currents. Minimal and maximal required amount of solvent, Determination of theoretical plates number in cross flow, co-current and counter current, Different kind of industrial columns. Absorption: Mass transfer (two films theory), Thermodynamics reminder on Henry law, Different kind of industrial columns. Determination of theoretical stages number with Mac Cab and Thiele method.

Compétences requises

Thermodynamics

Compétences visées

Liquid-liquid extraction and absorption: Interest of liquid-liquid extraction and absorption for separation/depolution in chemical processes. Be able to design a liquid-liquid extraction and an absorption unit in different configurations. Liquid-liquid extraction: - read an ternary equilibrium on a triangular diagram - design a liquid-liquid extraction in batch, co-current, cross currents, counter-current configurations (number of theoretical plates, flows of solvent, extraction efficiency, extraction selectivity) - read a ternary equilibrium in a 2D diagram. Absorption: - plot the ternary equilibrium from the Henry constant and with the acceleration factor linked to chemical absorption - design an absorption unit in counter currents (flows of solvent, efficiency, number of theoretical plates.

Bibliographie

Mass Transfer Operations by R. Treybal, McGraw-Hill Professional.

Contacts

Responsable(s) de l'enseignement

• Maxime Florent