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Ethanol Guerbet Condensation to n‐Butanol or C 4 ‐C 8 Alcohols over Ni/TiO 2 Catalyst
Author(s) -
Li Shuaiqi,
Zhu Xionghua,
An Hualiang,
Zhao Xinqiang,
Wang Yanji
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202001063
Subject(s) - crotonaldehyde , acetaldehyde , dehydrogenation , catalysis , condensation , chemistry , ethanol , n butanol , butanol , condensation reaction , selectivity , organic chemistry , physics , thermodynamics
Ethanol Guerbet condensation is an environmentally friendly process for preparing biofuel such as n‐butanol and alcohols with more than 4 carbon atoms. In this work, a multifunctional catalyst Ni/TiO 2 was prepared by an excess impregnation method and its catalytic performance for ethanol Guerbet condensation was evaluated. The selectivity of C 4 ‐C 8 alcohols reached up to almost 70% (41.4% of n‐butanol) at nearly half conversion of ethanol at 210 °C and 10 h. Based on GC‐MS analysis results, the products in ethanol Guerbet condensation were identified and a reaction network was established . The presence of acetaldehyde and 2‐crotonaldehyde in the reaction products verified that Ni/TiO 2 ‐catalyzed ethanol condensation followed the traditional dehydrogenation‐condensation‐hydrogenation reaction mechanism.