Abstract
The objective of this study is to be able to estimate the effective transport resistance of a porous medium by characterizing its void morphology by mercury porosimetry. A series of porous catalyst solids were obtained differing only in void morphology, overall porosity and pore sizes. We calculated the tortuosity by a dynamic experiment employing solid-gas chromatography, SGC. Tortuosities of all solids were very similar; in the range of 5–25. Transport resistance is more easily related to overall volume porosity rather than specific network architectural features observable by porosimetry.
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