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Hydrogenation of methyl acetate to ethanol by Cu/ZnO catalyst encapsulated in SBA‐15
Author(s) -
Wang Yue,
Liao Junyu,
Zhang Jian,
Wang Shengping,
Zhao Yujun,
Ma Xinbin
Publication year - 2017
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15620
Subject(s) - catalysis , copper , zinc , ethanol , syngas , chemistry , homogeneity (statistics) , chemical engineering , inorganic chemistry , materials science , organic chemistry , statistics , mathematics , engineering
The hydrogenation of methyl acetate (MA) is one of the important key processes for synthesis of ethanol from syngas. This work reports a highly efficient Cu‐ZnO/SBA‐15 catalyst prepared by facile solid‐state grinding method. Both copper and zinc species were encapsulated in SBA‐15 in high dispersion with the presence of organic template. The mixed homogeneity and interaction between copper and zinc species was enhanced as well with the help of organic template, resulting in the formation of Cu + species in the reduced catalysts. Moreover, TOF Cu(0) linearly increased with the Cu + /Cu 0 ratio, indicating that a high proportion of Cu + /Cu 0 induced by ZnO should be a key prerequisite to achieve favorable hydrogenation performance. It seems that the Cu + species originated from Cu‐ZnO x species are more active than that from Cu‐O‐Si species in the activation of MA. These results may provide an inspiration in rational design of Cu‐ZnO‐based catalysts for esters hydrogenation. © 2017 American Institute of Chemical Engineers AIChE J , 63: 2839–2849, 2017