The carbonylation of dimethyl ether (DME) to produce methyl acetate (MA) has a promising prospect in industry. Mordenite (MOR) been widely studied due its excellent catalytic activity and high MA selectivity; however, microporous characteristic limits the intracrystalline diffusion that influences stability. Therefore, it becomes essential clarify relationship between diffusion. In this study, ...

Various ferrierite zeolites were investigated as catalysts for the dimethyl ether (DME)-to-olefin (DTO) reactions to efficiently synthesize n-butene, such 1-butene, trans-2-butene, and cis-2-butene except iso-butene using a fixed-bed flow reactor. Twenty P-loaded with different structural parameters acidic properties prepared by impregnation method varying P content temperature of air calcinati...

Sorption-enhanced gasification (SEG) is a promising technology for producing renewable feedstock gas to be used in biofuel synthesis processes, especially dimethyl ether (DME) synthesis. To adopt the on commercial scale, it necessary acquire knowledge about related operational characteristics. The SEG process carried out at lower temperatures than those employed conventional gasifiers. A typica...

Elcogen is a company providing solid oxide cell and stack solutions for fuel (SOFC) electrolysis (SOEC) applications. Elcogen's are designed to operate at reduced operating temperatures but still high performance affordable cost low degradation level. currently expanding its manufacturing capabilities towards multi-MW annual production levels through factory project. As part of commercializatio...

Abstract Background Recent studies of lipid extraction from microalgae have focused primarily on dewatered or dried samples, and the processes are simple with high yield. Yet, dewatering drying step is energy intensive, which makes input during production more than output obtained lipid. Thus, exploring an technique for just a thickened sample without dewatering, auxiliary operation (such as ce...

In this study, Biodiesel -Dimethyl Ether (BDE ) was tested in a 4-cylinder direct-injection diesel engine to investigate the performance and emission characteristics of the engine under five engine loads at the maximum torque .The engine speed was maintained at 1500 rpm. Here the jatropha oil is used as a non edible oil to produce the biodiesel. The dimethyl ether is used as an additive to enha...

The world faces both an energy crisis and the problem of global warming due to increasing emissions of green-house gases, particularly CO2. Because of dwindling petroleum reserves in the USA, there is an urgent need to develop alternative fuels. Bioderived fuels are one of the most viable and affordable alternatives. We focus on several biofuels, specifically dimethyl-ether (DME), a clean fuel ...

Dimethyl ether is under consideration as an alternative diesel fuel. Its combustion chemistry is as yet ill-characterized. Here we use Born-Oppenheimer molecular dynamics (BOMD) based on DFT-B3LYP forces to investigate the short-time dynamics of selected features of the low-temperature dimethyl ether (DME) oxidation potential energy surface. Along the chain propagation pathway, we run BOMD simu...