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...

Dimethyl ether steam reforming to produce H2 over Ga-doped ZnO/γ-Al2O3 catalysts

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 52411-52420 ◽  
Author(s):  
Shuang Zhou ◽  
Kui Ma ◽  
Ye Tian ◽  
Ming Meng ◽  
Tong Ding ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Steam Reforming ◽  
Catalytic Performance ◽  
Doped Zno

Doping of ZnO with Ga enhances the catalytic performance of the ZnO/γ-Al2O3 catalyst for dimethyl ether steam reforming with high CO2 selectivity.

Catalytic Performance of Nanostructured Plate-type Cu and Cu-Fe on ZnO Nanorods for Steam Reforming of Methanol

2009 ◽  
Vol 1217 ◽  
Author(s):  
Chien-Cheng Li ◽  
Ran-Jin Lin ◽  
Li-Chyong Chen ◽  
Kuei-Hsien Chen
Keyword(s):  
Stainless Steel ◽  
Steam Reforming ◽  
Zno Nanorods ◽  
Catalytic Performance ◽  
High Porosity ◽  
Reduction Temperature ◽  
Steam Reforming Of Methanol ◽  
The Stability ◽  
Steel Substrates ◽  
Plate Type

AbstractThe Cu-type and (Cu-Fe)-type film catalysts have been successfully prepared by the electroless plating on ZnO nanorods/stainless steel substrates. The microstructure features of the (Cu-Fe)-type films are high porosity and plate-type grains. The addition of iron into Cu-type film can improve the reducibility and the stability of the film catalysts. The reduction temperature of the (Cu-Fe)-type film catalysts decreases with increasing the addition of Fe. For Cu-5 at% Fe film, the reduction temperature is in the range of 195°C to 216°C as comparison in the range of 208°C to 233°C of the Cu-type film catalysts.

scholarly journals Ni Catalysts Based on Attapulgite for Hydrogen Production through the Glycerol Steam Reforming Reaction

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 650 ◽  
Author(s):  
Nikolaos D. Charisiou ◽  
Victor Sebastian ◽  
Steven J. Hinder ◽  
Mark A. Baker ◽  
Kyriaki Polychronopoulou ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Carbon Deposition ◽  
Active Phase ◽  
Catalytic Performance ◽  
Ni Catalysts ◽  
Gaseous Products ◽  
Filamentous Carbon ◽  
Catalytic Material ◽  
Spent Catalysts ◽  
The Stability

Attapulgite (ATP, a natural clay) was used as carrier to produce a nickel-based catalyst (Ni/ATP) for the work that is presented herein. Its catalytic performance was comparatively assessed with a standard Ni/Al2O3 sample for the glycerol steam reforming (GSR) reaction. It was shown that the ATP support led to lower mean Ni crystallite size, i.e., it increased the dispersion of the active phase, to the easier reduction of NiO and also increased the basicity of the catalytic material. It was also shown that it had a significant effect on the distribution of the gaseous products. Specifically, for the Ni/ATP catalyst, the production of liquid effluents was minimal and subsequently, conversion of glycerol into gaseous products was higher. Importantly, the Ni/ATP favored the conversion into H2 and CO2 to the detriment of CO and CH4. The stability experiments, which were undertaken at a low WGFR, showed that the activity of both catalysts was affected with time as a result of carbon deposition and/or metal particle sintering. An examination of the spent catalysts revealed that the coke deposits consisted of filamentous carbon, a type that is known to encapsulate the active phase with fatal consequences.

scholarly journals Modification of the carbide microstructure by N- and S-functionalization of the support in MoxC/CNT catalysts

2016 ◽  
Vol 6 (10) ◽  
pp. 3468-3475 ◽  
Author(s):  
Benjamin Frank ◽  
Zai-Lai Xie ◽  
Klaus Friedel Ortega ◽  
Michael Scherzer ◽  
Robert Schlögl ◽  
...  
Keyword(s):  
Surface Modification ◽  
Steam Reforming ◽  
Molybdenum Carbide ◽  
Catalytic Performance ◽  
Significant Modification ◽  
Steam Reforming Of Methanol ◽  
Supported Molybdenum Carbide

Surface modification of a CNT support with S- or N-containing functionalities results in significant modification of the catalytic performance of supported molybdenum carbide in the steam reforming of methanol.

A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway

2020 ◽  
Vol 45 (56) ◽  
pp. 31523-31537
Author(s):  
Jing-Hong Lian ◽  
Hong-Yi Tan ◽  
Chang-Qing Guo ◽  
Zhi-Da Wang ◽  
Yan Shi ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Steam Reforming ◽  
Molybdenum Carbide ◽  
Reaction Pathway ◽  
Highly Active

Mechanistic insights into the catalytic role of various acid sites on ZSM-5 zeolite in the carbonylation of methanol and dimethyl ether

2018 ◽  
Vol 8 (12) ◽  
pp. 3193-3204 ◽  
Author(s):  
Sen Wang ◽  
Shiying Li ◽  
Li Zhang ◽  
Zhangfeng Qin ◽  
Yanyan Chen ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Catalytic Performance ◽  
Acid Sites ◽  
Zeolite Framework ◽  
Catalytic Role

The catalytic performance of ZSM-5 in carbonylation is strongly related to the location of acid sites in the zeolite framework.

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