Dimethyl ether gas is water soluble.

The effect of precursors, such as copper nitrate, acetate, and chloride, on the bifunctional Cu-ZnO/γ-Al2O3 catalysts was investigated for the direct dimethyl ether (DME) synthesis from syngas. The catalysts were characterized by measuring the reducibility and the surface area of metallic copper, together with their acidity. The well-dispersed copper particles with a high reducibility as well as a large amount of weak acidic sites on the bifunctional Cu-ZnO/γ-Al2O3 catalysts, prepared from a copper acetate precursor, are responsible for its high catalytic activity. The quantity of the acidic sites is a more crucial factor for obtaining a high DME yield than the surface area of metallic copper on the bifunctional catalyst.

An integrated biomass-derived syngas/dimethyl ether process.

25 Ogawa, T., Inoue, N., Shikada, T., Ohno, Y., “Direct dimethyl ether synthesis”, J.

Direct dimethyl ether (DME) synthesis through a …



4 Khandan, N., Kazemeini, M., Aghaziarati, M., “Synthesis of dimethyl ether over modified h-mordenite zeolites and bifunctional catalysts composed of Cu/ZnO/ZrO2 and modified h-mordenite zeolite in slurry phase”, Catal.

Direct conversion of syngas to dimethyl ether as a …



3 Khandan, N., Kazemeini, M., Aghaziarati, M., “Determining an optimum catalyst for liquid-phase dehydration of methanol to dimethyl ether”, Appl.


Synthesis of Dimethyl Ether (DME) | AIChE Academy

AB - The effect of precursors, such as copper nitrate, acetate, and chloride, on the bifunctional Cu-ZnO/γ-Al2O3 catalysts was investigated for the direct dimethyl ether (DME) synthesis from syngas. The catalysts were characterized by measuring the reducibility and the surface area of metallic copper, together with their acidity. The well-dispersed copper particles with a high reducibility as well as a large amount of weak acidic sites on the bifunctional Cu-ZnO/γ-Al2O3 catalysts, prepared from a copper acetate precursor, are responsible for its high catalytic activity. The quantity of the acidic sites is a more crucial factor for obtaining a high DME yield than the surface area of metallic copper on the bifunctional catalyst.

I did a literature review on the plausibility of Dimethyl ether ..

N2 - The effect of precursors, such as copper nitrate, acetate, and chloride, on the bifunctional Cu-ZnO/γ-Al2O3 catalysts was investigated for the direct dimethyl ether (DME) synthesis from syngas. The catalysts were characterized by measuring the reducibility and the surface area of metallic copper, together with their acidity. The well-dispersed copper particles with a high reducibility as well as a large amount of weak acidic sites on the bifunctional Cu-ZnO/γ-Al2O3 catalysts, prepared from a copper acetate precursor, are responsible for its high catalytic activity. The quantity of the acidic sites is a more crucial factor for obtaining a high DME yield than the surface area of metallic copper on the bifunctional catalyst.

DIRECT DIMETHYL ETHER SYNTHESIS FROM SYNTHESIS …



6 Farsi, M., Eslamloueyan, R., Jahanmiri, A., “Modeling, simulation and control of dimethyl ether synthesis in an industrial fixed-bed reactor”, Chem.

Dimethyl ether and catalyst development for …

Abstract—The direct synthesis process of dimethyl ether (DME) from syngas in slurry reactors is considered to be promising because of its advantages in caloric transfer. In this paper, the influences of operating conditions (temperature, pressure and weight hourly space velocity) on the conversion of CO, selectivity of DME and methanol were studied in a stirred autoclave over Cu-Zn-Al-Zr slurry catalyst, which is far more suitable to liquid phase dimethyl ether synthesis process than bifunctional catalyst commercially. A Langmuir-Hinshelwood mechanism type global kinetics model for liquid phase DME direct synthesis based on methanol synthesis models and a methanol dehydration model has been investigated by fitting our experimental data. The model parameters were estimated with MATLAB program based on general Genetic Algorithms and Levenberg-Marquardt method, which is suitably fitting experimental data and its reliability was verified by statistical test and residual error analysis. Keywords—alcohol/ether fuel, Cu-Zn-Al-Zr slurry catalyst, global kinetics, slurry reactor D I.

Global Kinetics of Direct Dimethyl Ether Synthesis …



7 Varisli, D., Dogu, T., “Production of clean transportation fuel dimethyl ether by dehydration of methanol over Nafion catalyst”, G.