Login for students

Login for employees

Publication detail

The utilization of ethanol for production of 1-butanol catalysed by Li-Al mixed metal oxides enhanced by Cu
Authors: Frolich Karel | Malina Jan | Hájek Martin | Kocik Jaroslav
Year: 2024
Type of publication: článek v odborném periodiku
Name of source: Renewable Energy
Publisher name: Elsevier
Place: Kidlington
Page from-to: 120834
Titles:
Language Name Abstract Keywords
cze Využití etanolu pro výrobu 1-butanolu katalyzovanou Li-Al směsnými oxidy kovů zesílenými Cu Selektivní katalytická přeměna bioetanolu na cenné chemické sloučeniny, zejména 1-butanol (tj. Guerbetova reakce), si získala významnou pozornost díky svému potenciálu nahradit v budoucnu fosilní zdroje. Tato práce pokračuje v hledání katalyzátoru s vysokou konverzí ethanolu a selektivitou vůči požadovaným produktům. Novinkou studie je použití směsných oxidů kovů měď-lithium-hliník jako heterogenních katalyzátorů. etanolu; 1-butanolu; katalýza; Li-Al směsné oxidy; Cu
eng The utilization of ethanol for production of 1-butanol catalysed by Li-Al mixed metal oxides enhanced by Cu 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. Ethanol; Guerbet reaction; Mixed metal oxide; Lithium; Aluminium; Copper

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0