DETERMINATION OF EFFECTIVE DIFFUSIVITIES AND TRANSPORT PARAMETERS OF POROUS SOLIDS IN THE SINGLE-PELLET-STRING-COLUMN

Authors
SOLCOVA O HEJTMANEK V SCHNEIDER P
Citation
O. Solcova et al., DETERMINATION OF EFFECTIVE DIFFUSIVITIES AND TRANSPORT PARAMETERS OF POROUS SOLIDS IN THE SINGLE-PELLET-STRING-COLUMN, Catalysis today, 38(1), 1997, pp. 71-77
Citations number
17
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Chemistry Physical
Journal title
Catalysis today → ACNP
ISSN journal
09205861
Volume
38
Issue
1
Year of publication
1997
Pages
71 - 77
Database
ISI
SICI code
0920-5861(1997)38:1<71:DOEDAT>2.0.ZU;2-A
Abstract
The chromatographic technique which employs SPSC and takes into accoun t the extra-column effects of the measuring system can provide consist ent transport characteristics of porous solids. These characteristics are independent of the kind of gases which are transported through por es, as well of temperature and pressure. Dispersion of the tracer band in the interparticle spaces of the SPSC increases at higher carrier g as velocities when the non-porous column packing is replaced by a poro us one. This points to some additional mechanism of band spreading cau sed by the presence of interface gas-porous solid.