Background 2,5-Furandicarboxylic acid is a renewable building block for the production of polyfurandicarboxylates, which are biodegradable polyesters expected to substitute their classical counterparts derived from fossil resources. It may be produced from bio-based 5-hydroxymethylfurfural or 5-methoxymethylfurfural, both obtained by the acidic dehydration of biomass-derived fructose. 5-Methoxy...

Dimethyl ether as a clean fuel has been attracted in the recent decade. It can be produced catalytic reaction of methanol dehydration. Modeling and simulation fixed-bed reactor for this process is desired to predict performance. A Voronoi 3-dimensional pore network model used study effect space on Considering morphological structure one advantages model. In study, modeling was consider mass hea...

operability analysis as one of the most important bridges between process design and process control helps the process designer to investigate the control issues quite early in the design stage. recently, vinson and georgakis suggested a steady state geometrical operability index as a quantitative measure for assessment of process operability. in this paper, dme fixed-bed reactor is heterogeneo...

Using surface analysis, simultaneous effects of temperature (260-380ºC) and ethanol concentration (0-1%) on dimethyl ether (DME) selectivity, yields of hydrocarbon and DME, and methanol conversion were investigated in methanol dehydration reaction over γ-Al2O3 catalyst. Methanol conversion and yield of hydrocarbon/DME were found to be significantly affected by temperature and the temperature-et...

The study has focused on the development of bifunctional catalytic materials for direct DME synthesis from CO2/H2. industrial Cu/ZnO/Al2O3 is used as copper based catalyst first step methanol It will be combined with hollow nano-ZSM-5 zeolites mesoporous shell acid second dehydration to DME. tested in CO2/H2 under following conditions: T = 225 °C, p 30 bar, H2/CO2 3. Under our reaction conditio...