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Synthesis of tailored oxymethylene ether (OME) fuels via transacetalization reactions

Drexler, Marius 1; Haltenort, Philipp 1; Zevaco, Thomas A. ORCID iD icon 1; Arnold, Ulrich 1; Sauer, Jörg ORCID iD icon 1
1 Institut für Katalyseforschung und -technologie (IKFT), Karlsruher Institut für Technologie (KIT)


In the field of alternative diesel fuels, so-called oxymethylene ethers (OMEs) are currently intensely investigated. Particularly OMEs of the type CH$_{3}$O(CH$_{2}$O)$_{n}$CH$_{3}$ with n = 3–5 exhibit promising fuel properties and combustion characteristics with strongly reduced particle and NO$_{x}$ emissions. According to their molecular structure, OMEs can be produced from methanol thus enabling sustainable production strategies from CO$_{2}$ and renewable resources. Compared to the methyl derivatives, analogous compounds with higher alkyl groups (oxymethylene dialkyl ethers, OMDAEs) have been investigated to a much lesser extent. Thus, commercially available OMDAEs, i.e. compounds of the type ROCH$_{2}$OR bearing ethyl, propyl, butyl and 2-ethylhexyl groups, have been studied. Furthermore, asymmetric compounds of the type R$^{1}$OCH$_{2}$OR$^{2}$ have been synthesized from the symmetric compounds employing transacetalization reactions catalyzed by zeolite BEA-25. The OMDAEs have been characterized by spectroscopic and spectrometric methods and several physico-chemical, thermodynamic and fuel-related data have been determined and compared. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000136554
Veröffentlicht am 20.08.2021
DOI: 10.1039/d1se00631b
Zitationen: 3
Web of Science
Zitationen: 3
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -technologie (IKFT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 07.09.2021
Sprache Englisch
Identifikator ISSN: 2398-4902
KITopen-ID: 1000136554
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Erschienen in Sustainable energy & fuels
Verlag Royal Society of Chemistry (RSC)
Band 5
Heft 17
Seiten 4311 - 4326
Vorab online veröffentlicht am 23.07.2021
Nachgewiesen in Dimensions
Web of Science
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