Effect of ZrO2on the Stability of Cu-ZnO-ZrO2/HZSM-5 Catalyst for Syngas Conversion to Dimethyl Ether

1998 ◽  
Vol 27 (3) ◽  
pp. 209-210 ◽  
Author(s):  
Qingjie Ge ◽  
Youmei Huang ◽  
Shuben Li
Keyword(s):  
Dimethyl Ether ◽  
Syngas Conversion ◽  
The Stability

Morphology Effects of Ferrierite on Bifunctional Cu–ZnO–Al2O3/Ferrierite for Direct Syngas Conversion to Dimethyl Ether

ACS Catalysis ◽  
2021 ◽  
pp. 14210-14223
Author(s):  
Hyun Seung Jung ◽  
Faisal Zafar ◽  
Xu Wang ◽  
Thi Xuan Nguyen ◽  
Chae Hwan Hong ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Syngas Conversion

Promotion effect of Fe in mordenite zeolite on carbonylation of dimethyl ether to methyl acetate

2015 ◽  
Vol 5 (3) ◽  
pp. 1961-1968 ◽  
Author(s):  
Hui Zhou ◽  
Wenliang Zhu ◽  
Lei Shi ◽  
Hongchao Liu ◽  
Shiping Liu ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Methyl Acetate ◽  
Promotion Effect ◽  
Carbonylation Reaction ◽  
The Stability

Fe-modified mordenite samples were synthesized and employed in dimethyl ether carbonylation reaction, resulting in an evident improvement of the stability.

Unravelling the Role of Ceria in Improving the Stability of Mo2C Based Catalyst for Steam Reforming of Dimethyl Ether

2021 ◽  
Author(s):  
Jing-Hong Lian ◽  
Hongyi Tan ◽  
Changqing Guo ◽  
Li-sha Shen ◽  
Zhuo-Xin Lu ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Steam Reforming ◽  
Water Oxidation ◽  
Molybdenum Carbide ◽  
Catalytic Performance ◽  
Significant Problem ◽  
The Stability

The inactivation of molybdenum carbide catalyst by water oxidation is a significant problem in steam reforming of dimethyl ether (SRD) reaction. In this work, the catalytic performance and stability of...

In situ real-time and quantitative investigation on the stability of non-aqueous lithium oxygen battery electrolytes

2016 ◽  
Vol 4 (17) ◽  
pp. 6332-6341 ◽  
Author(s):  
Dong Wook Kim ◽  
Su Mi Ahn ◽  
Jungwon Kang ◽  
Jungdon Suk ◽  
Hwan Kyu Kim ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Dimethyl Ether ◽  
Tetraethylene Glycol ◽  
Quantitative Investigation ◽  
Glycol Dimethyl Ether ◽  
Differential Electrochemical Mass Spectrometry ◽  
Lithium Oxygen Battery ◽  
The Stability

Differential electrochemical mass spectrometry (DEMS) results clearly show that dimethylacetamide (DMA) is more stable and exhibits better performance than tetraethylene glycol dimethyl ether (TEGDME), suggesting that DMA is a more favorable electrolyte for Li–O2 battery applications.

scholarly journals QM/MM study of the stability of dimethyl ether in zeolites H-ZSM-5 and H-Y

2020 ◽  
Author(s):  
Stefan Adrian F Nastase ◽  
C. Richard A. Catlow ◽  
Andrew J Logsdail
Keyword(s):  
Dimethyl Ether ◽  
Carbon Sources ◽  
Carbon Bond ◽  
Methanol To Hydrocarbons ◽  
Carbon Carbon Bond ◽  
Higher Hydrocarbons ◽  
The Stability

The methanol-to-hydrocarbons (MTH) process transforms C1 carbon sources to higher hydrocarbons, but details of the mechanism that leads to the formation of the first carbon-carbon bond remain unclear. Here, we...

scholarly journals THE EFFECT OF DIMETHYL ETHER (DME) AS LPG SUBSTITUTION ON HOUSEHOLD STOVE: MIXTURE STABILITY, STOVE EFFICIENCY, FUEL CONSUMPTION, AND MATERIALS TESTING

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Galuh Wirama Murti ◽  
Unggul Priyanto ◽  
Imron Masfuri ◽  
Nesha Adelia
Keyword(s):  
Fuel Consumption ◽  
Dimethyl Ether ◽  
Polymer Material ◽  
Materials Testing ◽  
Gas Composition ◽  
The Stability ◽  
Substitute Materials

DME has characteristics similar to LPG so that the storage and handling are not so different from LPG. DME could be used as a solvent that can extract typical types of rubber/polymer material. The aims and objectives of this study are to determine the effect of DME/LPG (100/0, 80/20, 50/50, 30/70, 20/80) on the stability of the DME/LPG mixture on the stove and also to observe the effect on several rubber materials/polymers on stove accessories. The study reveals that the usage of a DME/LPG mixture between 20/80 - 30/70 does not require a replacement of any substitute materials but only requires minor modifications to the stove. However, at a higher DME composition, the use of the fuel needs to replace the seal that is resistant to DME. It occurs due to the change of the gas composition when it is used.

scholarly journals Stability of a Bifunctional Cu-Based Core@Zeolite Shell Catalyst for Dimethyl Ether Synthesis Under Redox Conditions Studied by Environmental Transmission Electron Microscopy andIn SituX-Ray Ptychography

2017 ◽  
Vol 23 (3) ◽  
pp. 501-512 ◽  
Author(s):  
Sina Baier ◽  
Christian D. Damsgaard ◽  
Michael Klumpp ◽  
Juliane Reinhardt ◽  
Thomas Sheppard ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Dimethyl Ether ◽  
Core Shell ◽  
X Ray ◽  
Environmental Transmission ◽  
The Core ◽  
Transmission Electron ◽  
The Stability

AbstractWhen using bifunctional core@shell catalysts, the stability of both the shell and core–shell interface is crucial for catalytic applications. In the present study, we elucidate the stability of a CuO/ZnO/Al2O3@ZSM-5 core@shell material, used for one-stage synthesis of dimethyl ether from synthesis gas. The catalyst stability was studied in a hierarchical manner by complementary environmental transmission electron microscopy (ETEM), scanning electron microscopy (SEM) andin situhard X-ray ptychography with a specially designedin situcell. Both reductive activation and reoxidation were applied. The core–shell interface was found to be stable during reducing and oxidizing treatment at 250°C as observed by ETEM andin situX-ray ptychography, although strong changes occurred in the core on a 10 nm scale due to the reduction of copper oxide to metallic copper particles. At 350°C,in situX-ray ptychography indicated the occurrence of structural changes also on theµm scale, i.e. the core material and parts of the shell undergo restructuring. Nevertheless, the crucial core–shell interface required for full bifunctionality appeared to remain stable. This study demonstrates the potential of these correlativein situmicroscopy techniques for hierarchically designed catalysts.

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