In the present study, a heterogeneous and homogeneous gas flow dispersion model for simulation and optimization of a large-scale catalytic slurry reactor for the direct synthesis of dimethyl ether (DME) from synthesis gas (syngas) and CO2, using a churn-turbulent regime was developed. In the heterogeneous flow model, the gas phase was distributed into two bubble phases including small and large...

Dimethyl ether (DME) is considered an alternative hydrogen carrier with potential use in fuel cells and automotive domestic applications. hydrolysis to methanol a thermodynamically limited reaction catalyzed by solid-acid catalysts, mainly Al2O3 zeolites. Moreover, it the rate-limiting step of DME steam reforming reaction, which employed for production cell feeding. In present study, performanc...

CO2-derived methanol and dimethyl ether can play a very important role as fuels, energy carriers, bulk chemicals. Methanol production from CO2 renewable hydrogen is considered to be one of the most promising pathways alleviate global warming. In turn, could subsequently dehydrated into DME; alternatively, one-step conversion DME obtained by hydrogenation on bifunctional catalysts. this light, f...

In recent years, attention has focused on smokeless, sulfur-free dimethyl ethyl (DME) as a clean fuel for heavy-duty diesel vehicles. As a part of its Next-Generation Environmentally Friendly Vehicles Project (EFV21), the Ministry of Land, Infrastructure and Transport has developed a heavy-duty truck in the 20-ton class that uses DME as its fuel. A lean NOx trap system (NSR Type: NOx Storage Re...

DME (Dimethyl Ether) is the future environmental friendly fuel. Some parts of equipment for transporting are using rubber as a hoses or seals. This research about natural those applications. The influential part in manufacture products fillers. use filler depends on what product will be made. nature have high permeability and easy to absorb into plastic. In such that, plastic could damaged not ...

Anisole is a straw-colored aromatic compound mainly used in making solvents, flavoring agents, perfumes, fuel additives, and the synthesis industries. Anisole, also known as methoxybenzene, synthesized from sodium phenoxide or phenol using various methylating agents. The use of dimethyl ether (DME) an alkylating agent seldom reported literature. Herein, we have anisole through O-alkylation proc...

Clusters of Pt and Pd catalyze dimethyl ether (DME) combustion to CO2 and H2O at 400–600 K without detectable formation of byproducts. Rh clusters are less active and also form CO, HCHO, and CH3OH in this temperature range. On Pd, isotopic and kinetic studies have shown that DME–O2 reactions proceed via redox cycles limited by hydrogen abstraction from chemisorbed DME molecules without the invo...