Effect of Si content on the performance of direct synthesis of dimethyl ether over slurry CuZnAl catalyst prepared by complete liquid phase technology

2021 ◽  
Vol 49 (6) ◽  
pp. 791-798
Author(s):  
Kai SUN ◽  
Zhong-kai BIAN ◽  
Shu-yan CHENG ◽  
Gui-ru WANG ◽  
Lin ZHANG ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Dimethyl Ether ◽  
Direct Synthesis ◽  
Si Content ◽  
Synthesis Of Dimethyl Ether

A one-step Cu/ZnO quasi-homogeneous catalyst for DME production from syn-gas

2016 ◽  
Vol 6 (12) ◽  
pp. 4389-4397 ◽  
Author(s):  
A. García-Trenco ◽  
E. R. White ◽  
M. S. P. Shaffer ◽  
C. K. Williams
Keyword(s):  
Liquid Phase ◽  
High Activity ◽  
Dimethyl Ether ◽  
Zno Nanoparticles ◽  
Direct Synthesis ◽  
Homogeneous Catalyst ◽  
Hybrid Catalysts ◽  
One Step ◽  
Synthesis Of Dimethyl Ether

Colloidal Cu/ZnO nanoparticles combine with γ-Al2O3 to form promising hybrid catalysts for the direct synthesis of dimethyl ether (DME) in liquid phase, showing high activity, selectivity and stability.

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

Effects of Feed Composition and Space Velocity on Direct Synthesis of Dimethyl Ether from Syngas

2008 ◽  
Vol 47 (20) ◽  
pp. 7672-7679 ◽  
Author(s):  
Gholamreza Moradi ◽  
Javad Ahmadpour ◽  
Mahdi Nazari ◽  
Ferydon Yaripour
Keyword(s):  
Dimethyl Ether ◽  
Direct Synthesis ◽  
Space Velocity ◽  
Feed Composition ◽  
Synthesis Of Dimethyl Ether

Regeneration of CuO-ZnO-Al2O3/γ-Al2O3 catalyst in the direct synthesis of dimethyl ether

2010 ◽  
Vol 94 (1-2) ◽  
pp. 108-116 ◽  
Author(s):  
Irene Sierra ◽  
Javier Ereña ◽  
Andrés T. Aguayo ◽  
José M. Arandes ◽  
Javier Bilbao
Keyword(s):  
Dimethyl Ether ◽  
Direct Synthesis ◽  
Al2o3 Catalyst ◽  
Synthesis Of Dimethyl Ether

scholarly journals Direct synthesis of dimethyl ether from syngas over Cu-based catalysts: Enhanced selectivity in the presence of MgO

2016 ◽  
Vol 334 ◽  
pp. 89-101 ◽  
Author(s):  
Sonal Asthana ◽  
Chanchal Samanta ◽  
Asim Bhaumik ◽  
Biplab Banerjee ◽  
Ravi Kumar Voolapalli ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Direct Synthesis ◽  
Enhanced Selectivity ◽  
Synthesis Of Dimethyl Ether
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