1. Heterogeneously catalyzed synthesis of oxymethylene dimethyl ethers (OME) from dimethyl ether and trioxane.
- Author
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Haltenort, Philipp, Hackbarth, Kathrin, Oestreich, Dorian, Lautenschütz, Ludger, Arnold, Ulrich, and Sauer, Jörg
- Subjects
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CHEMICAL reactions , *NITROGEN oxides , *PHOTOCATALYSTS , *HYDROCARBONS , *BIOCHEMICAL substrates - Abstract
Oligomeric oxymethylene ethers (OMEs) are promising fuels for internal combustion engines with self-ignition. A tremendous reduction of soot, nitrogen oxide and hydrocarbon emissions can be realized by employing OMEs. This work describes the synthesis of OMEs from dimethyl ether (DME) and trioxane. Zeolite H-BEA 25 was found to be a suitable catalyst for this reaction and a study on reaction parameters (e.g. temperature, reactant feed ratio and reaction time) has been carried out. A maximum DME conversion of 13.9 wt% could be obtained and the maximum reactant-related product yield for OME 3–5 was 8.2 wt%. An OME formation mechanism is proposed which explains the observed product spectrum. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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