Methanol synthesis from CO2 hydrogenation over Cu/γ-Al2O3 catalysts modified by ZnO, ZrO2 and MgO

Autor:	Jian-Ying Liu, Cheng-Hua Xu, Hao-Yang Zhao, Hong Ren, Jie Liu, Ya-Xue Wang
Rok vydání:	2015
Předmět:	Materials science Hydrogen General Chemical Engineering Inorganic chemistry chemistry.chemical_element Water-gas shift reaction Catalysis Metal chemistry.chemical_compound chemistry Methanation visual_art visual_art.visual_art_medium Methanol Particle size Dispersion (chemistry)
Zdroj:	Journal of Industrial and Engineering Chemistry. 28:261-267
ISSN:	1226-086X
Popis:	Cu/γ-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 Cu0 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 Cu0 dispersion and particle size. The investigation on CO2 hydrogenation shows that methanol is mainly from hydrogenation of activated CO2 with active hydrogen on Cu0 particles, which is inhibited by high reaction temperature due to improvement on reverse water-gas shift reaction and methanation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0b111357297e2749a470e8d756cf9dd7 https://doi.org/10.1016/j.jiec.2015.03.001 Zobrazit plný text záznamu Full Text from ScienceDirect