The effect of CeO2–ZrO2 structural differences on the origin and reactivity of carbon formed during methane dry reforming over NiCo/CeO2–ZrO2 catalysts studied by transient techniques

2017 ◽  
Vol 7 (22) ◽  
pp. 5422-5434 ◽  
Author(s):  
Michalis A. Vasiliades ◽  
Petar Djinović ◽  
Albin Pintar ◽  
Janez Kovač ◽  
Angelos M. Efstathiou
Keyword(s):  
Active Carbon ◽  
Dry Reforming ◽  
Oxygen Mobility ◽  
Carbon Formation ◽  
Kinetic Rate ◽  
Methane Dry Reforming ◽  
Transient Techniques ◽  
Alloy Particles ◽  
Structural Differences

The kinetic rate of inactive and active carbon formation in DRM over CeZrO2-supported NiCo alloy particles depends on the support's oxygen mobility.

scholarly journals Low Temperature Activation of Carbon Dioxide by Ammonia in Methane Dry Reforming—A Thermodynamic Study

Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 481 ◽  
Author(s):  
Anand Kumar
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Hydrogen Production ◽  
Catalyst Activity ◽  
Dry Reforming ◽  
Equilibrium Analysis ◽  
Attractive Alternative ◽  
Carbon Formation ◽  
Methane Dry Reforming ◽  
Ammonia Addition

Methane dry reforming (MDR) is an attractive alternative to methane steam reforming for hydrogen production with low harmful environmental emissions on account of utilizing carbon dioxide in the feed. However, carbon formation in the product stream has been the most challenging aspect of MDR, as it leads to catalyst deactivation by coking, prevalent in hydrocarbon reforming reactions. Common strategies to limit coking have mainly targeted catalyst modifications, such as by doping with rare earth metals, supporting on refractory oxides, adding oxygen/steam in the feed, or operating at reaction conditions (e.g., higher temperature), where carbon formation is thermodynamically restrained. These methods do help in suppressing carbon formation; nonetheless, to a large extent, catalyst activity and product selectivity are also adversely affected. In this study, the effect of ammonia addition in MDR feed on carbon suppression is presented. Based on a thermodynamic equilibrium analysis, the most significant observation of ammonia addition is towards low temperature carbon dioxide activation to methane, along with carbon removal. Results indicate that ammonia not only helps in removing carbon formation, but also greatly enriches hydrogen production.

Bi- and trimetallic Ni catalysts over Al2O3 and Al2O3-MO (M = Ce or Mg) oxides for methane dry reforming: Au and Pt additive effects

2014 ◽  
Vol 156-157 ◽  
pp. 350-361 ◽  
Author(s):  
Hongjing Wu ◽  
Giuseppe Pantaleo ◽  
Valeria La Parola ◽  
Anna M. Venezia ◽  
Xavier Collard ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Additive Effects ◽  
Ni Catalysts ◽  
Methane Dry Reforming

scholarly journals Influence of Lanthanide Promoters on Ni/SBA-15 Catalysts for Syngas Production by Methane Dry Reforming

2016 ◽  
Vol 148 ◽  
pp. 1388-1395 ◽  
Author(s):  
Osaze Omoregbe ◽  
Huong T. Danh ◽  
S.Z. Abidin ◽  
H.D. Setiabudi ◽  
Bawadi Abdullah ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Methane Dry Reforming ◽  
Syngas Production

Performance and structural features of LaNi0.5Co0.5O3 perovskite oxides for the dry reforming of methane: influence of the preparation method

2019 ◽  
Vol 43 (27) ◽  
pp. 10763-10773 ◽  
Author(s):  
Maryam Mousavi ◽  
Ali Nakhaei Pour
Keyword(s):  
Preparation Method ◽  
Perovskite Oxides ◽  
Structural Features ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Methane Dry Reforming ◽  
Magnetized Water

LaNiO3 and LaNi0.5Co0.5O3 as perovskites were synthesized in magnetized and non-magnetized water and the activity of the catalysts was evaluated in the methane dry reforming reaction with CO2.

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