Towards a Sustainable Synthesis of Oxymethylene Dimethyl Ether by Homogeneous Catalysis and Uptake of Molecular Formaldehyde.
Towards a Sustainable Synthesis of Oxymethylene Dimethyl Ether by Homogeneous Catalysis and Uptake of Molecular Formaldehyde.
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DOI：
10.1002/anie.201802247
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发表时间：
2018-07
影响因子：
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通讯作者：
A. Peter;Samuel M. Fehr;Valentin Dybbert;D. Himmel;I. Lindner;E. Jacob;M. Ouda;A. Schaadt;Robin J. White;H. Scherer;I. Krossing
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文献类型：
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作者：
A. Peter;Samuel M. Fehr;Valentin Dybbert;D. Himmel;I. Lindner;E. Jacob;M. Ouda;A. Schaadt;Robin J. White;H. Scherer;I. Krossing
氧亚甲基二甲醚（OMEn; CH3（-OCH2-）nO-CH3，n = 3 - 5）是一类新型的可持续合成燃料，由于其无烟尘燃烧而受到越来越多的关注。本文提出了一种新的无水OMEn合成路线。在三甲基氧鎓盐的催化下，二甲氧基甲烷瞬间吸收单体气态甲醛，并在25 - 30 ° C的温度下形成高纯度的OMEn。这种使用分子甲醛和催化量的高活性三甲基氧鎓盐的新的无水方法代表了朝向从CO2和H2产生的OMEn的可持续形成的有希望的新步骤。
Oxymethylene dimethyl ethers (OMEn ; CH3 (-OCH2 -)n O-CH3 , n=3-5) are a novel class of sustainable synthetic fuels, which are of increasing interest due to their soot-free combustion. Herein a novel anhydrous OMEn synthesis route is presented. Catalyzed by trimethyloxonium salts, dimethoxymethane takes up monomeric gaseous formaldehyde instantaneously and forms high purity OMEn at temperatures of 25-30 °C. This new anhydrous approach using molecular formaldehyde and catalytic amounts of highly active trimethyloxonium salts represents a promising new step towards a sustainable formation of OMEn emanating from CO2 and H2 .