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  Gas-phase synthesis of oxymethylene ethers over Si-rich zeolites

Grünert, A., Losch, P., Ochoa-Hernandez, C., Schmidt, W., & Schüth, F. (2018). Gas-phase synthesis of oxymethylene ethers over Si-rich zeolites. Green Chemistry, 20(20), 4719-4728. doi:10.1039/C8GC02617C.

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Grünert, Anna1, Autor           
Losch, Pit2, Autor           
Ochoa-Hernandez, Cristina1, Autor           
Schmidt, Wolfgang2, Autor           
Schüth, Ferdi1, Autor           
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Research Group Schmidt, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445618              

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 Zusammenfassung: Oxymethylene ethers are a class of synthetic fuels that allows significantly reduced levels of pollutant emissions from compression-ignition engines. Conventionally they are synthesized in liquid-phase. As a new approach for the production of oxymethylene ethers the continuous gas-phase synthesis from methanol and formaldehyde was studied. A broad range of zeolites has been studied as the catalysts for the reaction and a relationship between reactivity and silica-to-alumina ratio was established. Moderate acidity as found in silicon-rich zeolites proved to be advantageous. Even aluminum-free zeolite shows high selectivity and activity to OME indicating that silanol groups as found on the external surface or in defects provide sufficient acidity for the reaction. The zeolitic catalysts deactivate with time but can be fully regenerated with common regeneration protocols.

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Sprache(n): eng - English
 Datum: 2018-08-172018-09-262018-09-272018-10-21
 Publikationsstatus: Erschienen
 Seiten: 10
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1039/C8GC02617C
 Art des Abschluß: -

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Titel: Green Chemistry
  Andere : Green Chem.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Cambridge, UK : Royal Society of Chemistry
Seiten: - Band / Heft: 20 (20) Artikelnummer: - Start- / Endseite: 4719 - 4728 Identifikator: ISSN: 1463-9262
CoNE: https://pure.mpg.de/cone/journals/resource/954925625301