Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1258962 | Journal of Rare Earths | 2015 | 10 Pages |
Abstract
In the present work, selective methanation of carbon monoxide in hydrogen rich stream was investigated over Ni/CeO2 nanocatalysts. The obtained results revealed that increasing in nickel loading decreased the BET surface area, pore volume and nickel dispersion. The 25%Ni/CeO2 with a NiO crystal size of 12 nm exhibited the highest activity in CO methanation reaction and reached to maximum CO conversion and CH4 selectivity at temperatures above 230 °C. The catalytic results revealed that CO selective methanation well progressed at lower temperatures while CO2 methanation was completely suppressed until CO conversion reached to maximum value.
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Related Topics
Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Behzad Nematollahi, Mehran Rezaei, Ebrahim Nemati Lay,