Olaya, Maria del Mar, Ibarra García, Isabel, Labarta, Juan A., Serrano Cayuelas, María Dolores, Marcilla, Antonio
Computing liquid-liquid phase equilibria: an exercise to understanding the nature of false solutions and how to avoid them
OLAYA LÓPEZ, María del Mar, et al. “Computing liquid-liquid phase equilibria: an exercise to understanding the nature of false solutions and how to avoid them”. Chemical Engineering Education. Vol. 41, No. 3 (Summer 2007). ISSN 0009-2479, pp. 218-224
URI: http://hdl.handle.net/10045/14277
DOI: 
ISSN: 0009-2479
Abstract: 
An exercise to compute LLE data is presented to illustrate the problems that can arise when the isoactivity equilibrium condition is used  in the LLE calculations. A much more efficient condition is obtained when isoactivity is combined with the common tangent line criterion, avoiding false solutions that correspond with very low values of the activity objective function. Also, 3D-figures are represented to discuss the topological aspects of the dimensionless Gibbs energy of mixture function (GM/RT).
Keywords:Liquid-liquid equilibrium, LLE, Isoactivity, Gibbs energy of mixing
American Society for Engineering Education. Chemical Engineering Division
info:eu-repo/semantics/article