“…DME addition shows enhancing effects on both, the reactivity [20,22,23,26,[28][29][30] and flame speed/stability of methane [19,21,25,27,31,32], as well as inhibiting effects on polycyclic aromatic hydrocarbon (PAH) and/or soot formation in non-premixed methane flames [24,33]. With respect to larger OMEn fuels as additive to methane, the only available report is, to our knowledge, by Herzler et al [14], who investigated the IDTs and combustion products of methane mixtures with OME1, i.e., dimethoxymethane (DMM, CH3OCH2OCH3), in a high-pressure ST.…”