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8413717 
Journal Article 
Bubble Column Chromatography: Measurement of Multicomponent Vapor-Liquid Equilibria 
Perilloux, CJ; Deans, HA 
1972 
0 
Industrial and Engineering Chemistry Fundamentals
ISSN: 0196-4313 
11 
1 
138-144 
English 
A new type of chromatography, called bubble column chromatography, has been developed to study vapor-liquid equilibria in general multicomponent systems. A bubble column consists of a hollow tube through which flows a series of closely spaced gas bubbles separated by thin liquid fillets. Since the gas velocity is higher than the average liquid velocity due to a stationary liquid film along the tube wall, the velocity separation necessary for chromatography is achieved. The retention time of a radioactive tracer pulse injected into such a system is shown to be a specific function of the tracer’s vapor-liquid equilibrium partition coefficient (K value). The K value of propane was measured in four systems including heliumpropane-hexane-isooctane in the 80-1 80°F temperature range and for pressures of 1.3-1.8 atm. Theoretical expressions and experimental verification were obtained for the liquid film thickness and for the overall dispersion coefficient. © 1972, American Chemical Society. All rights reserved.