Catalytic Dehydration of Methanol to Dimethyl Ether (DME) Using the Al62,2Cu25,3Fe12,5 Quasicrystalline Alloy

Dehydration of Methanol to Dimethyl Ether Employing Modified H-ZSM-5 Catalysts

Catalytic consequences of acid strength in the conversion of methanol to dimethyl ether

0021-9517/$ see front matter 2010 Elsevier Inc. A doi:10.1016/j.jcat.2010.11.017 ⇑ Corresponding author. E-mail addresses: [email protected] (M. Neuro Iglesia). The effects of acid identity on CH3OH dehydration are examined here using density functional theory (DFT) estimates of acid strength (as deprotonation energies, DPE) and reaction energies, combined with rate data on Keggin polyoxometala...

Hollow alumina nanospheres as novel catalyst for the conversion of methanol to dimethyl ether

This paper investigates hollow and porous alumina nanospheres that were previously synthesized to be used for the dehydration of methanol to dimethyl ether (DME). As hollow nanostructures possess characteristics such as low density and high surface to volume ratio, their catalytic activity between hollow and porous structure is compared. For this purpose, three most important parameters (acidit...

Selective homogeneous and heterogeneous catalytic conversion of methanol/dimethyl ether to triptane.

The demand for specific fuels and chemical feed-stocks fluctuates, and as a result, logistical mismatches can occur in the supply of their precursor raw materials such as coal, biomass, crude oil, and methane. To overcome these challenges, industry requires a versatile and robust suite of conversion technologies, many of which are mediated by synthesis gas (CO + H(2)) or methanol/dimethyl ether...

Process simulation of dimethyl ether synthesis via methanol vapor phase dehydration

The production processes included catalytic dehydration of methanol in an adiabatic fixed-bed reactor and two columns product separations. In this study, the technological process for dimethyl ether (DME) synthesis is built on PRO/II platform based on the combined parameters of the reaction dynamic model for methanol dehydration reaction, the improved NRTL model of the liquid phase, the PR mode...