نتایج جستجو برای: dimethyl ether
تعداد نتایج: 46425 فیلتر نتایج به سال:
Abstract The increasing CO 2 concentration in the atmosphere and resulting climate change require an immediate efficient reduction of anthropogenic carbon-dioxide emission. This target can be achieved by usage -neutral fuels even with current technologies (Schemme et al. Int J Hydrogen Energy 45:5395–5414, 2020). Diesel engines particular are amongst most prime movers. Using oxymethylene-dimeth...
The rotational dynamics of coumarin 153 (C153) in imidazolium-based ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF(6)]) and tetraethylene glycol dimethyl ether (TEGDME) mixtures across all mole fractions have been investigated to determine the local viscosity of the microenvironment surrounding the probe molecules. The excimer-to-monomer fluorescence emission intensity ...
In the study, effect of volumetric velocity initial gaseous mixture on catalytic properties Zn-Zr-Cu/HSZ/Al$_2$O$_3$ in conversion dimethyl ether to olefins was studied. When rate is increased by 5 times, decreases from 96.5 40.7 %, total selectivity for C$_2$=-C$_4$=olefins 59.0 75.5 mas.%, at same time, yield by-products reaction - C$_2$ + paraffin reduced. A decrease temperature equal leads ...
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