Effects of preparation conditions of Ni/TiO2 catalysts for selective CO methanation in the reformate gas

2013 ◽  
Vol 452 ◽  
pp. 174-178 ◽  
Author(s):  
Kohei Urasaki ◽  
Yuta Tanpo ◽  
Yuta Nagashima ◽  
Ryuji Kikuchi ◽  
Shigeo Satokawa
Keyword(s):  
Co Methanation ◽  
Preparation Conditions ◽  
Selective Co Methanation ◽  
Reformate Gas

scholarly journals Selective CO Methanation Over Ru Supported on Carbon Spheres: The Effect of Carbon Functionalization on the Reverse Water Gas Shift Reaction

2018 ◽  
Vol 148 (11) ◽  
pp. 3502-3513 ◽  
Author(s):  
David O. Kumi ◽  
Mbongiseni W. Dlamini ◽  
Tumelo N. Phaahlamohlaka ◽  
Sabelo D. Mhlanga ◽  
Neil J. Coville ◽  
...  
Keyword(s):  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Carbon Spheres ◽  
Co Methanation ◽  
Reverse Water Gas Shift ◽  
Selective Co Methanation ◽  
Shift Reaction ◽  
Water Gas

scholarly journals Effect of a titania covering on CNTS as support for the Ru catalysed selective CO methanation

2018 ◽  
Vol 232 ◽  
pp. 492-500 ◽  
Author(s):  
David O. Kumi ◽  
Tumelo N. Phaahlamohlaka ◽  
Mbongiseni W. Dlamini ◽  
Ian T. Mangezvo ◽  
Sabelo D. Mhlanga ◽  
...  
Keyword(s):  
Co Methanation ◽  
Selective Co Methanation

scholarly journals Selective CO Methanation in H2-Rich Gas for Household Fuel Cell Applications

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2844 ◽  
Author(s):  
Panagiota Garbis ◽  
Andreas Jess
Keyword(s):  
Fuel Cell ◽  
Natural Gas ◽  
Fixed Bed ◽  
Cell System ◽  
Operating Conditions ◽  
Attractive Alternative ◽  
Inlet Temperature ◽  
Co2 Methanation ◽  
Co Methanation ◽  
Selective Co Methanation

Polymer electrolyte membrane fuel cells (PEMFCs) are often used for household applications, utilizing hydrogen produced from natural gas from the gas grid. The hydrogen is thereby produced by steam reforming of natural gas followed by a water gas shift (WGS) unit. The H2-rich gas contains besides CO2 small amounts of CO, which deactivates the catalyst used in the PEMFCs. Preferential oxidation has so far been a reliable process to reduce this concentration but valuable H2 is also partly converted. Selective CO methanation considered as an attractive alternative. However, CO2 methanation consuming the valuable H2 has to be minimized. The modelling of selective CO methanation in a household fuel cell system is presented. The simulation was conducted for single and two-stage adiabatic fixed bed reactors (in the latter case with intermediate cooling), and the best operating conditions to achieve the required residual CO content (100 ppm) were calculated. This was done by varying the gas inlet temperature as well as the mass of the catalyst. The feed gas represented a reformate gas downstream of a typical WGS reaction unit (0.5%–1% CO, 10%–25% CO2, and 5%–20% H2O (rest H2)).

Effect of reduction pretreatment and support materials on selective CO methanation over supported Ru catalysts

2011 ◽  
Vol 404 (1-2) ◽  
pp. 149-154 ◽  
Author(s):  
Shohei Tada ◽  
Ryuji Kikuchi ◽  
Kohei Urasaki ◽  
Shigeo Satokawa
Keyword(s):  
Co Methanation ◽  
Ru Catalysts ◽  
Support Materials ◽  
Selective Co Methanation

Selective CO Methanation on Ru/TiO2 Catalysts: Role and Influence of Metal–Support Interactions

ACS Catalysis ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 6753-6763 ◽  
Author(s):  
Ali M. Abdel-Mageed ◽  
D. Widmann ◽  
S. E. Olesen ◽  
I. Chorkendorff ◽  
J. Biskupek ◽  
...  
Keyword(s):  
Co Methanation ◽  
Selective Co Methanation ◽  
Metal Support ◽  
Metal Support Interactions

Catalytic activity and durability of a mesoporous silica-coated Ni-alumina-based catalyst for selective CO methanation

2015 ◽  
Vol 251 ◽  
pp. 81-87 ◽  
Author(s):  
Toshihiro Miyao ◽  
Junya Tanaka ◽  
Weihua Shen ◽  
Katsuhiko Hayashi ◽  
Kazutoshi Higashiyama ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Mesoporous Silica ◽  
Co Methanation ◽  
Selective Co Methanation

Highly selective CO methanation over amorphous Ni–Ru–B/ZrO2 catalyst

2009 ◽  
Vol 20 (8) ◽  
pp. 889-892 ◽  
Author(s):  
Qi Hai Liu ◽  
Xin Fa Dong ◽  
Wei Ming Lin
Keyword(s):  
Co Methanation ◽  
Selective Co Methanation ◽  
Zro2 Catalyst

Effect of metal addition to Ru/TiO2 catalyst on selective CO methanation

2014 ◽  
Vol 232 ◽  
pp. 16-21 ◽  
Author(s):  
Shohei Tada ◽  
Ryuji Kikuchi ◽  
Atsushi Takagaki ◽  
Takashi Sugawara ◽  
S. Ted Oyama ◽  
...  
Keyword(s):  
Co Methanation ◽  
Tio2 Catalyst ◽  
Selective Co Methanation ◽  
Metal Addition

Physical mixing of TiO2 with sponge nickel creates new active sites for selective CO methanation

2016 ◽  
Vol 6 (11) ◽  
pp. 3713-3717 ◽  
Author(s):  
S. Tada ◽  
D. Shoji ◽  
K. Urasaki ◽  
N. Shimoda ◽  
S. Satokawa
Keyword(s):  
Metal Oxides ◽  
Active Sites ◽  
Physical Contact ◽  
Co Methanation ◽  
Selective Co Methanation ◽  
Physical Mixing

Ni–α-Al2O3, Ni–SiO2, Ni–γ-Al2O3, Ni–TiO2, and Ni–ZrO2 were prepared by physical mixing of metal oxides with sponge Ni, and the effect of physical contact of the metal oxides with sponge Ni on selective CO methanation was examined.

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