Nickel catalysts supported on calcium titanate for enhanced CO methanation

2013 ◽  
Vol 3 (2) ◽  
pp. 490-499 ◽  
Author(s):  
Chunmiao Jia ◽  
Jiajian Gao ◽  
Jing Li ◽  
Fangna Gu ◽  
Guangwen Xu ◽  
...  
Keyword(s):  
Nickel Catalysts ◽  
Calcium Titanate ◽  
Co Methanation

Highly Efficient LaxCe1–xO2–x/2 Nanorod-Supported Nickel Catalysts for CO Methanation: Effect of La Addition

2021 ◽  
Vol 35 (4) ◽  
pp. 3307-3314
Author(s):  
Yahong Han ◽  
Jinxian Zhao ◽  
Yanhong Quan ◽  
Shunan Yin ◽  
Shiping Wu ◽  
...  
Keyword(s):  
Nickel Catalysts ◽  
Co Methanation ◽  
Highly Efficient ◽  
Supported Nickel Catalysts ◽  
La Addition

Reaction mechanism of CO methanation on nickel catalysts, as studied by isotopic and nonstationary methods

2011 ◽  
Vol 52 (5) ◽  
pp. 749-755 ◽  
Author(s):  
Luu Cam Loc ◽  
Nguyen Manh Huan ◽  
N. A. Gaidai ◽  
Ho Si Thoang ◽  
N. V. Nekrasov ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Nickel Catalysts ◽  
Co Methanation

Nickel Catalysts Supported on Barium Hexaaluminate for Enhanced CO Methanation

2012 ◽  
Vol 51 (31) ◽  
pp. 10345-10353 ◽  
Author(s):  
Jiajian Gao ◽  
Chunmiao Jia ◽  
Jing Li ◽  
Fangna Gu ◽  
Guangwen Xu ◽  
...  
Keyword(s):  
Nickel Catalysts ◽  
Co Methanation ◽  
Barium Hexaaluminate

Deactivation of supported nickel catalysts during CO methanation

2014 ◽  
Vol 486 ◽  
pp. 143-149 ◽  
Author(s):  
J. Barrientos ◽  
M. Lualdi ◽  
M. Boutonnet ◽  
S. Järås
Keyword(s):  
Nickel Catalysts ◽  
Co Methanation ◽  
Supported Nickel Catalysts

The insights into chlorine doping effect on performance of ceria supported nickel catalysts for selective CO methanation

2018 ◽  
Vol 221 ◽  
pp. 413-421 ◽  
Author(s):  
M.V. Konishcheva ◽  
D.I. Potemkin ◽  
P.V. Snytnikov ◽  
O.A. Stonkus ◽  
V.D. Belyaev ◽  
...  
Keyword(s):  
Nickel Catalysts ◽  
Doping Effect ◽  
Co Methanation ◽  
Chlorine Doping ◽  
Selective Co Methanation ◽  
Supported Nickel Catalysts

CO methanation over TiO2-supported nickel catalysts: A carbon formation study

2015 ◽  
Vol 502 ◽  
pp. 276-286 ◽  
Author(s):  
J. Barrientos ◽  
M. Lualdi ◽  
R. Suárez París ◽  
V. Montes ◽  
M. Boutonnet ◽  
...  
Keyword(s):  
Nickel Catalysts ◽  
Carbon Formation ◽  
Co Methanation ◽  
Supported Nickel Catalysts

High catalytic performance of mesoporous zirconia supported nickel catalysts for selective CO methanation

2014 ◽  
Vol 4 (8) ◽  
pp. 2508-2511 ◽  
Author(s):  
Aihua Chen ◽  
Toshihiro Miyao ◽  
Kazutoshi Higashiyama ◽  
Mashiro Watanabe
Keyword(s):  
High Performance ◽  
Precious Metals ◽  
Nickel Catalysts ◽  
Catalytic Performance ◽  
Co Methanation ◽  
Long Term Stability ◽  
Selective Co Methanation ◽  
Wide Range ◽  
Mesoporous Zirconia ◽  
Supported Nickel Catalysts

Ni/mesoporous ZrO2, without precious metals, exhibits high performance for selective CO methanation at a wide range of working temperatures and superior long-term stability.

Selective Methanation of CO over Mesoporous Nano Zirconian Supported Ni Catalysts

2011 ◽  
Vol 236-238 ◽  
pp. 829-834 ◽  
Author(s):  
Qi Hai Liu ◽  
Lie Wen Liao ◽  
Xin Hua Zhou ◽  
Quo Qiang Yin
Keyword(s):  
Self Assembly ◽  
Nickel Catalysts ◽  
Catalytic Performance ◽  
Ammonium Bromide ◽  
Ni Catalysts ◽  
Co Methanation ◽  
Co Conversion ◽  
Xrd Techniques ◽  
Almost All ◽  
Supported Ni

Mesoporous nano zirconian was prepared by the self-assembly route using hexadecyltrimethyl ammonium bromide (CTAB) surfactant and employed as support for Nickel catalysts for selective methanation of CO. The CO methanation catalytic performance of the synthesized mesoporous nano zirconia-supported Ni-based catalysts was investigated, and the catalysts were charactered by TG/DSC, BET and XRD techniques. The results showed that, when the Ni loading was under 7.5 wt%, almost all the nickle species were in the form of nanoscale crystallites that finely distributed on the mosoporous nano zirconian surface. These well dispersive nickle species presented unique high activity and selectivity for CO methanation. For all the catalysts studied, the 7.5 wt%Ni/ZrO2catalyst was the most effective one, which showed a higher than 99% of CO conversion in the CO/CO2competitive methanation reactions over the temperature interval of 260~280°C, while the CO2conversion was held at the low level.

scholarly journals Self-assembly of flower-like LaNiAlO3-supported nickel catalysts for CO methanation

2018 ◽  
Vol 115 ◽  
pp. 40-44 ◽  
Author(s):  
Hamidreza Arandiyan ◽  
Ghasem Kasaeian ◽  
Behzad Nematollahi ◽  
Yuan Wang ◽  
Hongyu Sun ◽  
...  
Keyword(s):  
Self Assembly ◽  
Nickel Catalysts ◽  
Co Methanation ◽  
Supported Nickel Catalysts

scholarly journals CO and CO2 Co-Methanation on Ni/CeO2-ZrO2 Soft-Templated Catalysts

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 415 ◽  
Author(s):  
Luciano Atzori ◽  
Elisabetta Rombi ◽  
Daniela Meloni ◽  
Maria Franca Sini ◽  
Roberto Monaci ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Fixed Bed ◽  
Nickel Catalysts ◽  
Molar Ratio ◽  
Soft Template ◽  
Carbon Oxides ◽  
Experimental Conditions ◽  
Oxide Systems ◽  
Co Methanation ◽  
Ce Content

Supported nickel catalysts were synthesized, characterized, and employed in the carbon oxides co-methanation process. Five NiO/CeO2-ZrO2 mixed oxides, with the same Ni content and different Ce/Zr molar ratios, were prepared by the soft-template method. They were characterized through ICP-AES, N2 adsorption, XRD, and TPR. Reduced Ni/CeO2-ZrO2 catalysts were obtained by submitting the oxide systems to reduction treatment in H2 at 400 °C. They were characterized by XRD, H2-TPD, and CO2 adsorption microcalorimetry and their catalytic performances in the carbon oxides co-methanation were investigated. Catalytic tests were performed in a fixed-bed continuous-flow microreactor at atmospheric pressure. The effect of experimental conditions (reaction temperature, space velocity, reactants molar ratio) was also studied. Almost complete CO conversion was obtained on any catalyst, whereas CO2 conversion was much lower and increased with Ce content, at least up to Ce/Zr = 1. The beneficial effect of the Ce content could be related to the increased NiO reducibility and to the higher ability to adsorb and activate CO2. However, at high Ce/Zr ratios, it is probably counterbalanced by an interplay of reactions involving CO and CO2.

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