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Experimental data for the crossover process in a model supercritical system
Author(s) -
Kelley F. D.,
Chimowitz E. H.
Publication year - 1989
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.690350611
Subject(s) - crossover , supercritical fluid , benzoic acid , supercritical carbon dioxide , yield (engineering) , process (computing) , process engineering , experimental data , materials science , biological system , thermodynamics , chemistry , computer science , mathematics , engineering , physics , organic chemistry , statistics , artificial intelligence , biology , operating system
Abstract This paper presents the experimental technique and data acquired in the evaluation of a separation process in the crossover region of a model supercritical fluid system consisting of benzoic acid, 1–10 decanediol, and carbon dioxide. The results show that by exploiting the crossover effect it is possible to obtain essentially pure benzoic acid (>99.5% purity) with a single temperature cycle. A number of other issues are also discussed including the tradeoff between yield and purity and the manner in which the process variables are specified, which involves the interplay of experiment and model calculations.