The utilization of ethanol for production of 1-butanol catalysed by Li-Al mixed metal oxides enhanced by Cu
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39922222" target="_blank" >RIV/00216275:25310/24:39922222 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0960148124009029?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0960148124009029?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.renene.2024.120834" target="_blank" >10.1016/j.renene.2024.120834</a>
Alternative languages
Result language
angličtina
Original language name
The utilization of ethanol for production of 1-butanol catalysed by Li-Al mixed metal oxides enhanced by Cu
Original language description
The selective catalytic conversion of bio-ethanol into valuable chemical compounds, particularly 1-butanol (i.e., Guerbet reaction), has gained significant attention due to its potential to replace fossil sources in the future. This work continues the search for a catalyst with high ethanol conversion and selectivity toward desired products. The novelty of the study lies in its use of copper-lithium-aluminum mixed metal oxides as heterogeneous catalysts. Li-Al oxides were prepared via urea precipitation, and copper was introduced in two ways: (i) during coprecipitation and (ii) post-synthetic impregnation. Gas-phase reaction in a fixed-bed reactor was realized at varying temperatures and pressures. The properties of the mixed metal oxides proved to be crucial, as a wide range of products was observed. Catalysts that shifted from acidic to basic properties, and those with different redox properties, significantly affected ethanol conversion and selectivity toward the desired higher alcohols. Compared to previously used magnesium-aluminum mixed metal oxides, a lower amount of copper was required to achieve similar or higher ethanol conversion (71 %) and butanol selectivity (30 %) at 300-350 degrees C and 10 MPa. Thus, lithium-aluminum mixed metal oxides showed the potential to surpass magnesium-aluminum mixed metal oxides with further study and adjustment of their properties.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Renewable Energy
ISSN
0960-1481
e-ISSN
1879-0682
Volume of the periodical
230
Issue of the periodical within the volume
September 2024
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
120834
UT code for WoS article
001252960700001
EID of the result in the Scopus database
2-s2.0-85196523595