scholarly journals Synthesis of Dimethyl Ether from Methanol over Heteropoly Acid/Nanocrystalline HZSM-5 Complex Solid Acidic Catalyst

2013 ◽  
Vol 71 (5) ◽  
pp. 810 ◽  
Author(s):  
Chunjie Jiang ◽  
Shengnan Sun ◽  
Xuyang Wang ◽  
Xiangsheng Wang ◽  
Hongchen Guo ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Heteropoly Acid ◽  
Acidic Catalyst ◽  
Synthesis Of Dimethyl Ether

scholarly journals Process Simulation and Environmental Aspects of Dimethyl Ether Production from Digestate-Derived Syngas

2021 ◽  
Vol 18 (2) ◽  
pp. 807
Author(s):  
Aristide Giuliano ◽  
Enrico Catizzone ◽  
Cesare Freda
Keyword(s):  
Dimethyl Ether ◽  
Process Simulation ◽  
Carbon Capture ◽  
Energy Transition ◽  
Process Conditions ◽  
Co2 Absorption ◽  
Environmental Aspects ◽  
Dme Synthesis ◽  
Water Gas ◽  
Synthesis Of Dimethyl Ether

The production of dimethyl ether from renewables or waste is a promising strategy to push towards a sustainable energy transition of alternative eco-friendly diesel fuel. In this work, we simulate the synthesis of dimethyl ether from a syngas (a mixture of CO, CO2 and H2) produced from gasification of digestate. In particular, a thermodynamic analysis was performed to individuate the best process conditions and syngas conditioning processes to maximize yield to dimethyl etehr (DME). Process simulation was carried out by ChemCAD software, and it was particularly focused on the effect of process conditions of both water gas shift and CO2 absorption by Selexol® on the syngas composition, with a direct influence on DME productivity. The final best flowsheet and the best process conditions were evaluated in terms of CO2 equivalent emissions. Results show direct DME synthesis global yield was higher without the WGS section and with a carbon capture equal to 85%. The final environmental impact was found equal to −113 kgCO2/GJ, demonstrating that DME synthesis from digestate may be considered as a suitable strategy for carbon dioxide recycling.

One-step synthesis of dimethyl ether from syngas on ordered mesoporous copper incorporated alumina

2016 ◽  
Vol 25 (5) ◽  
pp. 775-781 ◽  
Author(s):  
Yan Wang ◽  
Yuexian Chen ◽  
Feng Yu ◽  
Dahai Pan ◽  
Binbin Fan ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Ordered Mesoporous ◽  
One Step ◽  
Synthesis Of Dimethyl Ether

Deactivation and regeneration of hybrid catalysts in the single-step synthesis of dimethyl ether from syngas and CO2

2005 ◽  
Vol 106 (1-4) ◽  
pp. 265-270 ◽  
Author(s):  
Andrés T. Aguayo ◽  
Javier Ereña ◽  
Irene Sierra ◽  
Martin Olazar ◽  
Javier Bilbao
Keyword(s):  
Dimethyl Ether ◽  
Single Step ◽  
Hybrid Catalysts ◽  
Synthesis Of Dimethyl Ether

scholarly journals Temperature-programmed surface reactions of methanol and dimethyl ether on bifunctional catalysts for the direct synthesis of dimethyl ether from syngas

2018 ◽  
Vol 243 ◽  
pp. 00002
Author(s):  
Olga Vodorezova ◽  
Pavel Musich ◽  
Natalia Karakchieva ◽  
Lothar Heinrich ◽  
Irina Kurzina
Keyword(s):  
Dimethyl Ether ◽  
Direct Synthesis ◽  
Bifunctional Catalyst ◽  
Bifunctional Catalysts ◽  
X Ray Diffraction ◽  
X Ray ◽  
Physical Mixing ◽  
Stage Synthesis ◽  
Temperature Programmed ◽  
Synthesis Of Dimethyl Ether

Dimethyl ether (DME) can be used as a replacement for diesel fuel in transportation. The catalytic effectiveness of bifunctional catalysts for DME one-stage synthesis from carbon monoxide and hydrogen was estimated in the paper. Bifunctional catalysts CuZnAl/HZSM-5, CuZnAlCr/HZSM-5, and CuZnAlZr/HZSM-5 were obtained by physical mixing of CuZnAl(Cr/Zr)– Ох and HZSM-5 components and were characterized by BET, X-ray diffraction, and temperatureprogrammed surface reaction methods. Based on the TPSR results, the mechanism of the interaction of methanol and DME with the surface of the bifunctional catalyst was studied. It was found that the temperature range of the greatest catalytic activity was 240–260 °С.

Structured catalysts for the direct synthesis of dimethyl ether from synthesis gas: A comparison of core@shell versus hybrid catalyst configuration

2020 ◽  
Vol 342 ◽  
pp. 46-58 ◽  
Author(s):  
Giulia Baracchini ◽  
Albert G.F. Machoke ◽  
Michael Klumpp ◽  
Ruoxi Wen ◽  
Patrick Arnold ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Synthesis Gas ◽  
Direct Synthesis ◽  
Core Shell ◽  
Hybrid Catalyst ◽  
Structured Catalysts ◽  
Synthesis Of Dimethyl Ether
Sign in / Sign up

Export Citation Format

Share Document