Fabrication and performance of monolithic continuous-flow silica microreactors
| Autor: | Wojciech Pudło, Andrzej B. Jarzębski, Katarzyna Maresz, Agnieszka Koreniuk, Julita Mrowiec-Białoń, Małgorzata Berdys |
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| Rok vydání: | 2015 |
| Předmět: |
geography
Materials science Chromatography Fabrication geography.geographical_feature_category General Chemical Engineering Butanol Cordierite General Chemistry engineering.material Industrial and Manufacturing Engineering Rod Catalysis chemistry.chemical_compound Chemical engineering chemistry engineering Honeycomb Environmental Chemistry Microreactor Monolith |
| Zdroj: | Chemical Engineering Journal. 282:137-141 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2015.01.132 |
| Popis: | Monolith-in-monolith reactor (MiM) was obtained by embedding monolithic silica with the hierarchical pore structure into the channels of conventional honeycomb monolith made of cordierite. Surface treatment of the cordierite with alkaline and acidic solution was applied to increase its surface area and generate strong silanols, to ensure good adherence between the monoliths. Application of 10 wt% NaOH solution at room temperature for 0.5 h was found to offer the best contact between two materials. Both structure and flow characteristics of the embedded silica proved to be quite similar to those obtained for pure silica rods, considered as reference. Performance of MiM microreactor functionalised with sulphonic groups was shown to be similar to that of a single silica rod microreactor in the esterification of acetic acid with butanol. The elaboration of fabrication procedure for monolithic silica microreactors may open new venue in the engineering of cost-effective production of fine chemicals. |
| Databáze: | OpenAIRE |
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