Premium
Exact calculation methods for systems of interlinked columns. Part I: Separation of binary heterogeneous azeotropes
Author(s) -
Hsu Hsien,
Tierney J. W.
Publication year - 1981
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690270505
Subject(s) - azeotrope , binary number , condenser (optics) , separation (statistics) , thermodynamics , iterative method , column (typography) , mathematics , algorithm , chemistry , chromatography , physics , distillation , light source , statistics , arithmetic , geometry , connection (principal bundle) , optics
A mathematical model and iterative correction algorithm are described for the exact solution of separation systems which contain interlinked columns in which some stages have two liquid phases and others have a vapor and liquid phase. The correction algorithm is based on Newton's method and provides for simultaneous correction of all iteration variables. The derivatives are calculated analytically from the model equations. The separation of a binary mixture which forms a heterogeneous azeotrope is analyzed. Modifications to the correction algorithm which provide for fixed condenser temperature and fixed product flows are described. The separation of butanol and water is used to illustrate the method.