scholarly journals Supported Intermetallic PdZn Nanoparticles as Bifunctional Catalysts for the Direct Synthesis of Dimethyl Ether from CO‐Rich Synthesis Gas

2019 ◽  
Vol 131 (44) ◽  
pp. 15802-15806 ◽  
Author(s):  
Manuel Gentzen ◽  
Dmitry E. Doronkin ◽  
Thomas L. Sheppard ◽  
Anna Zimina ◽  
Haisheng Li ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Synthesis Gas ◽  
Direct Synthesis ◽  
Bifunctional Catalysts ◽  
Pdzn Nanoparticles ◽  
Synthesis Of Dimethyl Ether

scholarly journals Supported Intermetallic PdZn Nanoparticles as Bifunctional Catalysts for the Direct Synthesis of Dimethyl Ether from CO‐Rich Synthesis Gas

2019 ◽  
Vol 58 (44) ◽  
pp. 15655-15659 ◽  
Author(s):  
Manuel Gentzen ◽  
Dmitry E. Doronkin ◽  
Thomas L. Sheppard ◽  
Anna Zimina ◽  
Haisheng Li ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Synthesis Gas ◽  
Direct Synthesis ◽  
Bifunctional Catalysts ◽  
Pdzn Nanoparticles ◽  
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

scholarly journals Optimization of the direct synthesis of dimethyl ether from CO2 rich synthesis gas: closing the loop between experimental investigations and model-based reactor design

2020 ◽  
Vol 5 (5) ◽  
pp. 949-960
Author(s):  
Nirvana Delgado Otalvaro ◽  
Markus Kaiser ◽  
Karla Herrera Delgado ◽  
Stefan Wild ◽  
Jörg Sauer ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Kinetic Modeling ◽  
Synthesis Gas ◽  
Experimental Validation ◽  
Direct Synthesis ◽  
Reactor Design ◽  
Experimental Investigations ◽  
Model Based ◽  
Closing The Loop ◽  
Synthesis Of Dimethyl Ether

Kinetic modeling, model-based optimization and experimental validation for the direct DME synthesis.

Complex Catalysts for Direct Synthesis of Dimethyl Ether from Synthesis Gas. Part I: Study of the Catalytic Properties

2013 ◽  
Vol 872 ◽  
pp. 15-22 ◽  
Author(s):  
Natalia I. Kosova ◽  
Pavel Musich ◽  
Irina A. Kurzina ◽  
Alexander Vosmerikov
Keyword(s):  
Dimethyl Ether ◽  
Synthesis Gas ◽  
Catalytic Properties ◽  
Direct Synthesis ◽  
Zeolite Catalysts ◽  
Methanol Dehydration ◽  
Combined Process ◽  
Catalytic Systems ◽  
Synthesis Of Dimethyl Ether

The results of the development of combined process for production of dimethyl ether (CuO/ZnO/Al2O3) and methanol dehydration (γ-Al2O3, zeolite (ZSM-5 type) with a silicate modulus (М) 20, 30, 60, 80, 100, and 200) are presented. The experiments on the influence of the catalysts loading and catalytic conditions were carried out (Р=3 MPa, Н2/СО=2, Т=553 К). It was established that the use of ZSM-5 zeolite catalysts with silicate modulus of 30 allows obtaining the yield of dimethyl ether up to 39%. It was stated that catalytic systems were stable during 180 h.

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