Influence of pore structure and impregnation–drying conditions on the solid distribution in porous support materials
| Autor: | A. Besser, F. Kleine Jäger, Thomas Metzger, Evangelos Tsotsas, Peter Walzel, M. Börnhorst, Arman Rahimi, Abdolreza Kharaghani, N. Nestle |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Imagination
Chemical substance Chemistry General Chemical Engineering media_common.quotation_subject 04 agricultural and veterinary sciences 040401 food science law.invention 0404 agricultural biotechnology Chemical engineering Magazine law Support materials Physical and Theoretical Chemistry Crystallization Porosity Science technology and society Porous medium media_common |
| Zdroj: | Drying Technology. 34:1964-1978 |
| ISSN: | 1532-2300 0737-3937 |
| Popis: | Deposition of solids within porous materials from a drying solution is an important phenomenon in numerous natural and industrial processes. A profound knowledge about influences of different parameters on the solid distribution in the material is required for an effective targeted impregnation process. Experimental investigations and simulations are used to study the influence of pore structure, drying conditions, and solute concentration on the solid distribution in porous support materials after impregnation and drying. It is found that low drying rates lead to strong solid accumulation at the material surface, whereas high drying rates reduce the solute transport to the surface and result in more uniform solid distributions. A small pore diameter and distribution width reduce solute migration during drying and lead to uniform solid distributions without being influenced by the drying conditions. A higher initial concentration of the impregnation solution causes pronounced surface accumulation,... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |