Dimethyl ether (DME) is a versatile raw material and an interesting alternative fuel that can be produced by the catalytic direct hydrogenation of CO2. Recently, this process has attracted attention industry due to environmental benefits CO2 elimination from atmosphere its lower operating costs with respect classical, two-step synthesis DME syngas (CO + H2). However, kinetics thermodynamic limi...

In this work the continuous production of dimethyl ether (DME) by sorption-enhanced DME synthesis (SEDMES) technology has been demonstrated for first time with a multi-column test-rig. A single-pass carbon yield up to 95%, higher than ever reported before, achieved. The experiments have also shown that SEDMES can be operated at lower temperatures (220°C) previously reported. This allows tempera...

Dimethyl ether (DME) is a compound first introduced by Shell as chemical solvent for enhanced oil recovery (EOR). This study aims to investigate the efficiency of EOR using minimum miscible pressure (MMP) and viscous gravity number when mixed CO2 DME injected. Adding water-alternating-gas process reduces MMP number. Reduction in results conditions at lower pressures, which has favorable effect ...

Due to several apparent advantages over methanol, dimethyl ether (DME) has been viewed as a promising alternative fuel for direct fuel cell technology. Similar to methanol, DME oxidation requires a surface oxidant, such as OH, for the removal of adsorbed CO. Consequently, the reaction occurs at much faster rates on binary PtRu catalysts than Pt alone. In this work, PtRu catalysts with a wide va...

The rates of adsorption, desorption, and surface reaction dimethyl ether (DME) to olefins over fresh working ZSM-5 catalysts with different Si/Al ratios (36 135) were decoupled using a combination temperature-programmed experiments microkinetic modelling. Transient reactor performance was simulated by solving coupled 1D nonlinear partial differential equations accounting for elementary steps du...

Abstract In this paper, we show and discuss a set of cross sections for electron collisions with dimethyl ether (DME, C 2 H 6 O) obtained by the standard swarm analysis experimental data drift velocities ionization coefficients measured in pure DME its mixtures Ar Ne E. Oettinger coworkers. While existing section gave relatively good predictions velocities, it proved necessary to modify inelast...

Many countries use liquefied petroleum gas (LPG) for various purposes, such as cooking and heating. As the population need energy grow, demand LPG steadily increases. This situation causes rise in imports with an insufficient local supply, including Indonesia. To overcome this problem, Indonesian Government plans to substitute fuel dimethyl ether (DME). However, stoves household burners widely ...

• Structuration of the CZA catalyst by washcoating was successfully obtained Inorganic colloids are crucial for obtaining good adherence on monolith Nevertheless, inorganic affect to catalytic properties Acidity like Al 2 O 3 and SiO is able dehydrate methanol DME CZA_10%Al formulation coated monoliths showed excellent activity performances. The best slurry prepare a structured synthesis reacti...

Solvent-driven water extraction (SDWE) has promising applications in hypersaline brine desalination, including zero-liquid discharge processing for industrial wastewaters, and resource recovery, such as the of lithium rare earth elements from solution mining leachates. In this study, we develop a computational thermodynamic framework to analyze liquid–liquid brines using dimethyl ether (DME), a...