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Simple, analytical criteria for the sequencing of distillation columns
Author(s) -
Malone M. F.,
Glinos K.,
Marquez F. E.,
Douglas J. M.
Publication year - 1985
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.690310419
Subject(s) - simple (philosophy) , distillation , heuristics , fractionating column , ideal (ethics) , column (typography) , selection (genetic algorithm) , chromatography , mathematics , process engineering , chemistry , mathematical optimization , thermodynamics , computer science , engineering , physics , artificial intelligence , philosophy , geometry , epistemology , connection (principal bundle)
A quantitative criterion for the selection of simple distillation sequences is derived for ideal mixtures. A simple cost model, along with a short‐cut solution of Underwood's equations, gives an analytical form for the total vapor rate, which is the key design variable. The results for column sequencing that are based on the analytical criterion agree well with more exact solutions, but they indicate that in numerous situations the commonly accepted heuristics are incorrect.