Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 28, Issue -, Pages 261-267Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2015.03.001
Keywords
CO2 hydrogenation; Methanol; Cu-based catalyst; Modification
Funding
- Major Natural Science Project of Sichuan Provincial Department of Education [13Z171]
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Cu/gamma-Al2O3 catalysts for methanol synthesis from CO2 are prepared and modified by metal oxides via impregnation in the present work. Results indicate that promoters modification leads to the formation of small Cu particles with a high dispersion, improves catalytic performance of Cu-based catalysts in methanol synthesis. Moreover, the activation temperature is another important factor on affecting the Cu dispersion and particle size. The investigation on CO2 hydrogenation shows that methanol is mainly from hydrogenation of activated CO2 with active hydrogen on Cu particles, which is inhibited by high reaction temperature due to improvement on reverse water-gas shift reaction and methanation. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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