Pore size distribution functions for porous catalysts
โ Scribed by J.O. Mingle; J.M. Smith
- Publisher
- Elsevier Science
- Year
- 1961
- Tongue
- English
- Weight
- 535 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
โฆ Synopsis
A new expresslon IS presented for the thickness of the adsorbed layer of mtrogen on a porous catalyst Its use reqmres two commonly derived properties of porous catalysts, the average pore radms, F and the heat-of-adsorptlon constant c obtamed from the B-E-T (Brunauer-Emmett-Teller) surface area equation Usmg the new expresslon adsorption Isotherms can be developed for analytlcal pore size dlstrlbutlon functions of any type These may be compared with experunental adsorptlon data to ascertain the most smtable pore size dlstnbutlon
It IS advantageous to have an analytlcal function for the pore size dlstrlbutlon when addrtlonal calculations, for example of effectiveness factors, are to be made
๐ SIMILAR VOLUMES
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The fabrication of carbon solids which have a narrow distribution of pore size and fairly high strength has been made by carbonizing briquettes of grafted carbon black. These briquettes have a large pore volume of about 0.7 ml/g. The carbon black particles are bonded to each other by a carbonized po
Abstrac-A method for determining a type of pore-size distribution from diffusion measurements is presented. A Wick+Kallenbach experiment, for measuring diffusion fluxes within porous materials, is carried out over a significant portion of the transition range between Knudsen flow and bulk diflusi