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Analysis of gas chromatography pulse dispersion data for the system n ‐butane/zeolite nay
Author(s) -
Fu ChenChen,
Ramesh M. S. P.,
Haynes H. W.
Publication year - 1986
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.690321110
Subject(s) - butane , zeolite , dispersion (optics) , sorption , chemistry , diffusion , gas chromatography , pulse (music) , thermodynamics , limiting , analytical chemistry (journal) , chromatography , organic chemistry , catalysis , physics , optics , adsorption , mechanical engineering , detector , engineering
An analysis of gas chromatography pulse dispersion data for the system n ‐butane/zeolite NaY is presented. The data were analyzed in terms of two models, an intracrystalline diffusion limiting model and a surface barrier model. Both models provided acceptable fits to the pulse dispersion data; however, the temperature dependence of the apparent mass transport parameters strongly suggests that a surface barrier is responsible for the observed transport resistance. The Henry's law constants were independent of choice of model and the isosteric heat of sorption was consistent with literature values.