Development of an improved continuous hydrogenation process for the production of 1,3-propanediol using titania supported ruthenium catalysts
| Autor: | Pierre Gallezot, Anne Pigamo, Michèle Besson, Scott Reifsnyder |
|---|---|
| Přispěvatelé: | IRCELYON, ProductionsScientifiques, Institut de recherches sur la catalyse (IRC), Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
010405 organic chemistry
Process Chemistry and Technology Catalyst support Inorganic chemistry chemistry.chemical_element [CHIM.CATA] Chemical Sciences/Catalysis 02 engineering and technology Microporous material [CHIM.CATA]Chemical Sciences/Catalysis 021001 nanoscience & nanotechnology Heterogeneous catalysis 7. Clean energy 01 natural sciences Catalysis 0104 chemical sciences Ruthenium Propanediol chemistry Transition metal 0210 nano-technology Mesoporous material |
| Zdroj: | Applied Catalysis A : General Applied Catalysis A : General, Elsevier, 2003, 250, pp.117-124 |
| ISSN: | 0926-860X |
| Popis: | The catalytic hydrogenation of aqueous solutions of 3-hydroxypropanal (3-HPA) to 1,3-propanediol (1,3-PDO) was conducted at 40–60 °C and 40 bar hydrogen with heterogeneous ruthenium catalysts in a trickle-bed reactor. Catalysts were optimized to obtain stable activity and selectivity as a function of time on stream. Catalyst deactivation was attributed to the deposit of heavy organic impurities on the catalyst surface blocking the reactant access to the active ruthenium particles. The pore structure of the catalyst had a significant influence on the catalytic results. The most stable catalysts were supported on low surface area macroporous titania (rutile, ca. 1 m 2 g −1 ), whereas mesoporous TiO 2 , and particularly microporous SiO 2 supports deactivated because of surface blockage by organic impurities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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