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ERIC Number: EJ829477
Record Type: Journal
Publication Date: 2007
Pages: 7
Abstractor: As Provided
Reference Count: 6
ISSN: ISSN-0009-2479
Computing Liquid-Liquid Phase Equilibria: An Exercise for Understanding the Nature of False Solutions and How to Avoid Them
Olaya, Maria del Mar; Ibarra, Isabel; Reyes-Labarta, Juan A.; Serrano, Maria Dolores; Marcilla, Antonio
Chemical Engineering Education, v41 n3 p218-224 Sum 2007
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). (Contains 1 table and 8 figures.)
Chemical Engineering Education, Chemical Engineering Division of ASEE. P.O. Box 142097, Gainesville FL 32614. Tel: 352-392-0861; Fax: 352-392-0861; e-mail:; Website:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: Students; Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Spain