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Selective catalytic synthesis of short chain oxymethylene ethers by a heteropoly acid – a reaction parameter and kinetic study

Huth, Daniel ; Rose, Marcus (2023)
Selective catalytic synthesis of short chain oxymethylene ethers by a heteropoly acid – a reaction parameter and kinetic study.
In: Catalysis Science & Technology, 2020, 11 (5)
doi: 10.26083/tuprints-00024531
Artikel, Zweitveröffentlichung, Postprint

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Kurzbeschreibung (Abstract)

Oxymethylene ethers (OME) are considered as a low-emission additive or replacement to diesel fuel. They can be synthesized by different routes based on C₁ platform chemicals in different oxidation states. The challenge is to tune the acidic catalyst for the condensation reaction to a selectivity for a certain oligomeric fraction (OME₃₋₅) for optimal fuel properties. Herein, we report the use of heteropoly acids that showed an outstanding activity and selectivity for the production of the respective OME fraction under very mild reaction conditions. Trioxane and dimethoxymethane (OME₁) were used as substrates which are both products of the methanol value-added chain. Reaction parameters such as catalyst/substrate ratio and temperature could be reduced considerably due to a high catalytic activity and selectivity. Kinetic data were obtained experimentally and modelled to estimate the reaction rate, activation energy and pre-exponential factor as a solid basis for further reaction engineering.

Typ des Eintrags: Artikel
Erschienen: 2023
Autor(en): Huth, Daniel ; Rose, Marcus
Art des Eintrags: Zweitveröffentlichung
Titel: Selective catalytic synthesis of short chain oxymethylene ethers by a heteropoly acid – a reaction parameter and kinetic study
Sprache: Englisch
Publikationsjahr: 2 Oktober 2023
Ort: Darmstadt
Publikationsdatum der Erstveröffentlichung: 23 Dezember 2020
Verlag: Royal Society of Chemistry
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Catalysis Science & Technology
Jahrgang/Volume einer Zeitschrift: 11
(Heft-)Nummer: 5
DOI: 10.26083/tuprints-00024531
URL / URN: https://tuprints.ulb.tu-darmstadt.de/24531
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Herkunft: Zweitveröffentlichungsservice
Kurzbeschreibung (Abstract):

Oxymethylene ethers (OME) are considered as a low-emission additive or replacement to diesel fuel. They can be synthesized by different routes based on C₁ platform chemicals in different oxidation states. The challenge is to tune the acidic catalyst for the condensation reaction to a selectivity for a certain oligomeric fraction (OME₃₋₅) for optimal fuel properties. Herein, we report the use of heteropoly acids that showed an outstanding activity and selectivity for the production of the respective OME fraction under very mild reaction conditions. Trioxane and dimethoxymethane (OME₁) were used as substrates which are both products of the methanol value-added chain. Reaction parameters such as catalyst/substrate ratio and temperature could be reduced considerably due to a high catalytic activity and selectivity. Kinetic data were obtained experimentally and modelled to estimate the reaction rate, activation energy and pre-exponential factor as a solid basis for further reaction engineering.

Status: Postprint
URN: urn:nbn:de:tuda-tuprints-245313
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
Fachbereich(e)/-gebiet(e): 07 Fachbereich Chemie
07 Fachbereich Chemie > Ernst-Berl-Institut
07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie
07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II
Hinterlegungsdatum: 02 Okt 2023 09:44
Letzte Änderung: 19 Feb 2024 09:18
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