Progress in the anhydrous production of oxymethylene ethers (OME) as a renewable diesel fuel in a liquid phase process

Investigation of the cooperative-effects of Lewis- and Brønstedt acids in homogeneously catalyzed OME fuel synthesis by inline-NMR monitoring

“…Brønsted acids (BAs) and Lewis acids (LAs) are known for their catalytic activity during the OME fuel synthesis. 35,36 Several studies already addressed the possible cooperative effects. 37,38 Baranwoski et al investigated the inuence of the formaldeyhde content in dealuminated tin graed zeolites.…”

A novel process towards the industrial realization of large-scale oxymethylene dimethyl ether production – COMET

“…Aqueous synthesis OME 1 and TRI [14][15][16] DME and TRI 17,18 OME 1 and monomeric FA 19 MeOH and FA(aq.) 20,21 MeOH and monomeric FA 28,39,40,42 -High MEFO selectivity [29][30][31]44,45 -Very low TRL of the monomeric FA production -Low OME 3 20,56 and assume that the adsorbents are heated up from 25 °C to 235 °C for the regeneration using high pressure steam. Furthermore, it was assumed that the heat demand is mainly based on the heat of adsorption and the heat capacity of the adsorbents.…”

Continuous Anhydrous Synthesis of Oxymethylene Dimethyl Ethers by Reaction of Dimethyl Ether with Molecular Formaldehyde

“…Previous studies highlighted the potential of acidic zeolites and IERs in OME n synthesis. [8,9] Table 2 summarizes the characteristics of the zeolites investigated. The IERs used include a styrenedivinylbenzene matrix and are functionalized with sulfonic acid as the active group.…”

“…Whereas anhydrous synthesis routes starting from TRI and OME 1 are well-investigated, [6] the use of DME as a chain terminating agent is only very scarcely reported. [7][8][9][10] Hence, the reaction of DME with TRI was catalyzed by zeolites and ion exchange resins (IER). An initially investigated batch process [10] was transferred into a continuous, condensed-phase process.…”