Journal
MATERIALS TRANSACTIONS
Volume 61, Issue 7, Pages 1332-1338Publisher
JAPAN INST METALS & MATERIALS
DOI: 10.2320/matertrans.MT-M2020109
Keywords
CeO2 additive; methanation; CO2-rich gas; CO promotional effect; Ni/SBA-15 catalyst
Funding
- Vietnam Academy of Science and Technology [DLTE00.10/18-19]
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NiO/SBA-15 catalysts modified by CeO2 were synthesized and studied for the hydrogenation of CO2-rich gas. Effect of CeO2 promoter on the physicochemical properties of the catalysts was investigated by BET, XRD, Raman spectroscopy, SEM, TEM, H-2-TPR and CO2-TPD methods. The 4 mass% CeO2 addition improved reduction and dispersion of Ni, resulting in its higher activity in methanation, reaching CO2 conversion of 90% at 350 degrees C. Furthermore, the performance of the prepared catalysts in methanation reaction was enhanced by adding small amount of CO (1 mol%) in the feedstock.
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