Feasibility studies on quaternary reactive distillation systems

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A quick and reliable algorithm is proposed to evaluate the feasibility of a double-feed reactive distillation column on the basis of the projection method (AIChE J. 2001, 47, 1333). A critical composition region is introduced where liquid seems to be more volatile than its equilibrated vapor in the projected space. If this critical composition region is spread along the entire binary edge of an upper feed and a top product in the original composition space, then a double-feed column cannot produce desired products. Otherwise, outside the critical composition region, single-stage calculations are carried out under potential pinch points to determine upper and lower bounds of the internal reflux ratio. If the permissible range of the reflux ratio near a pure product vertex overlaps with all the other permissible reflux ranges in one projected space, then a double-feed column can produce specified products.
Publisher
AMER CHEMICAL SOC
Issue Date
2002-09
Language
English
Article Type
Article
Keywords

METHYL ACETATE; DIFFERENCE POINTS; GRAPHICAL-METHOD; ACETIC-ACID; DESIGN; EQUILIBRIA; CASCADES; WATER

Citation

INDUSTRIAL ENGINEERING CHEMISTRY RESEARCH, v.41, no.18, pp.4632 - 4642

ISSN
0888-5885
DOI
10.1021/ie0109859
URI
http://hdl.handle.net/10203/174988
Appears in Collection
CBE-Journal Papers(저널논문)
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