Influence of Preadsorbed Water on Chromatographic Detention of Organic Volatiles by Cellulosic Substrates

Abstract

A modified gas chromatographic system was used to measure the effects of pread sorbed water on the adsorption and desorption of various organic volatiles by cellulosic substrates. To minimize diffusion effects, short columns and fast carrier gas flow rates were used. The data yielded sticking coefficients, residence times, equilibrium constants (adsorption isotherms), and surface concentrations for a group of adsorbates including a homologous series of alcohols. In general, sticking coefficients increased, and residence time, equilibrium constants, and surface concentrations decreased as the concentration of water vapor increased. Sticking coefficients correlated with the total solubility pa rameters of the adsorbates.

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References

Barton, A.F.M. , Solubility Parameters, Chem. Revs. 75, 731 (1975).

DeBoer, J.H. , "The Dynamical Character of Adsorption," Calendon Press, Oxford, 1953, p. 239; through P.A. Mazurak , Doctoral dissertation, The Institute of Paper Chemistry, Appleton, WI, January 1979.

Dollimore, D. , and Holt, B. , Sorption of Vapors in Cellulose Film, J. Appl. Polym. Sci. 17, 1795 (1973).

Eberly, P.E. , Jr., Kinetics of n-Butane Adsorption on Various Particle Sizes of Silica Gel by Gas-Solid Chromatography, J. Appl. Chem. 14, 330 (1964).

Eberly, P.E. , Jr., and Spencer , E.H. , Mathematics of Adsorption for Pulse Flow Through Packed Columns, Trans. Faraday Soc. 56, 289 (1961).

Gozdz, A. , and Weigmann, H.-D. , Surface Characterization of Intact Fibers by Inverse Gas Chromatography, J. Appl. Polym. Sci. 29, 3965-3979 (1984).

Gray, D.G. , Surface Studies of Fibre-Water Systems by Gas Chromatography, in " Trans. Symp. on Fibre-Water Interactions in Paper-Making," Oxford, September 1977.

Katz, S. , and Gray, D.G. , The Adsorption of Hydrocarbons on Cellophane, III: Effect of Relative Humidity , J. Colloid Interface Sci. 82, 339 ( 198 1 ).

Knox, B.H. , Weigmann, H.-D. , and Scott, M.G. , Interactions of Nonaqueous Solvents with Textile Fibers, Part V: Application of the Solubility Parameter Concept to Polyester Fiber-Solvent Interactions , Textile Res. J. 45, 203 (1975).

10.

Miller, B. , Friedman, H.L. , and Meiser, C.H. , Jr., The Use of Textile Yarns in Separation Processes, Textile Res. J. 50, 10 ( 1980).

11.

Miller, B. , Friedman, H.L. , and Meiser, C.H. , Jr., The Use of Yarn Belts for Continuous Dehumidification, Textile Res. J. 50, 513 (1980).

12.

Tremaine, P.R. , Mohlin, U.-B. , and Gray, D.G. , The Adsorption of n-Decane on the Surface of Water-Swollen Cellulose Fibers, J. Colloid Interface Sci. 60, 548 (1977).