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The characterization of fixed beds of porous solids from pulse response
Author(s) -
Bashi Haseeb,
Gunn Donald
Publication year - 1977
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.690230108
Subject(s) - thermal diffusivity , laplace transform , péclet number , dispersion (optics) , tracer , porosity , pulse (music) , mechanics , characterization (materials science) , materials science , mathematics , mathematical analysis , thermodynamics , physics , optics , composite material , detector , nuclear physics , nanotechnology
The response of a fixed bed of porous particles through which fluid flows to a pulse of tracer gas has been analyzed by a number of methods. It is found that analysis of the Fourier transformed and the Laplace transformed response curves for small values of the parameters of the integrals provides accurate estimates of intraparticle diffusivity and Peclet group for axial dispersion when additional information provided by the experiments is used to resolve interaction between the process coefficients in the dynamic response.