Microporous and Micro-meso-macroporous Y Zeolites in the Synthesis of 2-Methyl-5-ethylpyridine
| Autor: | N. A. Filippova, B. I. Kutepov, V. A. Dyakonov, N. G. Grigor’eva, A. N. Khazipova, S. V. Bubennov |
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| Rok vydání: | 2021 |
| Předmět: |
010405 organic chemistry
General Chemical Engineering Acetaldehyde Energy Engineering and Power Technology General Chemistry Microporous material 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis 2-methyl-5-ethylpyridine Ammonia chemistry.chemical_compound Fuel Technology chemistry Geochemistry and Petrology Molar ratio Yield (chemistry) Selectivity Nuclear chemistry |
| Zdroj: | Petroleum Chemistry. 61:364-369 |
| ISSN: | 1555-6239 0965-5441 |
| DOI: | 10.1134/s0965544121030075 |
| Popis: | The study investigates the catalytic properties of microporous (H–Y) and micro-meso-macroporous (H–Y-mmm) FAU-type zeolites in the synthesis of 2-methyl-5-ethylpyridine (MEP) by the reaction of acetaldehyde with ammonia. At 150°C, an acetaldehyde to ammonia molar ratio of 1 : 3, and a catalyst content of 10 wt %, a MEP yield of 58% (0.95H–Y) and 63% (0.95H–Y-mmm) was achieved with a MEP selectivity of 91 and 93%, respectively. The examination of the catalyst stability revealed that hierarchical H–Y-mmm zeolites ensure a 100% MEP selectivity during 4–5 cycles with a slight decline in the catalytic activity, while H–Y zeolites are active during the first cycle only. |
| Databáze: | OpenAIRE |
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