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A calculational procedure for design problems in multicomponent distillation
Author(s) -
Ricker Neil L.,
Grens Edward A.
Publication year - 1974
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.690200205
Subject(s) - distillation , fractionating column , column (typography) , fractional distillation , component (thermodynamics) , flow (mathematics) , mathematical optimization , process engineering , computer science , stage (stratigraphy) , mathematics , chemistry , engineering , thermodynamics , chromatography , connection (principal bundle) , paleontology , physics , geometry , biology
A calculation procedure for multicomponent distillation has been developed that is directly applicable to design problems. It is based on successive approximation methods with adjustment of the number of equilibrium stages in each column section between iterations to meet given reflux flow and feed stage composition conditions while maintaining specified key component recoveries. This procedure has been applied to a number of representative distillation design problems. It converges readily to proper column designs from initial estimates based on a noniterative stage‐to‐stage calculation. Moreover, the procedure is markedly superior in computational efficiency to solution of design problems by repeated application of operating calculations to assumed column configurations.