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Intermediate reboiler and condenser arrangement for binary distillation columns
Author(s) -
Agrawal Rakesh,
Herron D. Michael
Publication year - 1998
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.690440609
Subject(s) - reboiler , distillation , condenser (optics) , usable , process engineering , chemistry , binary number , stripping (fiber) , fractionating column , vacuum distillation , column (typography) , process (computing) , chromatography , multiple effect distillation , fractional distillation , computer science , mathematics , engineering , mechanical engineering , arithmetic , light source , physics , connection (principal bundle) , world wide web , optics , operating system
The most thermodynamically efficient configuration for adding or removing heat from an intermediate location of an ideal binary distillation column distilling pure products is derived. The optimal policy requires that preconditioning of the feed be part of the overall decision‐making process. The optimal configuration can be determined through the use of two parameters, α IR and α IC , that are solely functions of feed composition. Simple and readily usable heuristics using these parameters are developed that help instantly identify the most efficient selection among (1) totally vaporizing and returning a side‐draw liquid stream from an intermediate location of the distillation column, (2) partially or totally vaporizing a portion of the given saturated liquid feed, (3) partially or totally condensing a portion of the given saturated vapor feed, and (4) totally condensing and returning a side‐draw vapor stream from an intermediate location of the distillation column.