The utilization of bio-ethanol for production of 1-butanol catalysed by Mg-Al mixed metal oxides enhanced by Cu or Co

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39920262" target="_blank" >RIV/00216275:25310/24:39920262 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10098-023-02581-5" target="_blank" >https://link.springer.com/article/10.1007/s10098-023-02581-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10098-023-02581-5" target="_blank" >10.1007/s10098-023-02581-5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The utilization of bio-ethanol for production of 1-butanol catalysed by Mg-Al mixed metal oxides enhanced by Cu or Co

Popis výsledku v původním jazyce

The Guerbet reaction is a possible way for transformation of ethanol to 1-butanol (important for many kinds of industries), which consists of four steps: dehydrogenation, aldol condensation, dehydration, and hydrogenation. Due to the elimination of possible side-reactions, the selective catalysis is required to favour production of 1- butanol at temperature below 350 degrees C. The main aim of this work was the ethanol transformation via heterogeneous catalysis using active Mg-Al mixed oxides with copper or cobalt carried out in the microflow reactor in the reaction temperature interval 280-350 degrees C. The novelty lies in the statistical analysis of results from characterization of catalyst structure and surface with catalysis results providing more sophisticated perspective on the ethanol valorization. The series of Mg-Al catalysts containing copper showed an overall higher conversion of ethanol and selectivity to butanol compared to the series containing cobalt. Major difference of catalytic activity was at low reaction temperatures and at a lower copper content in the Mg- Al matrix, which is significant from the point of view of environmentally clean processes. A multi-step mechanism of the Guerbet reaction involving an aldol condensation was verified for both tested catalysts series and reaction conditions.

Název v anglickém jazyce

The utilization of bio-ethanol for production of 1-butanol catalysed by Mg-Al mixed metal oxides enhanced by Cu or Co

Popis výsledku anglicky

The Guerbet reaction is a possible way for transformation of ethanol to 1-butanol (important for many kinds of industries), which consists of four steps: dehydrogenation, aldol condensation, dehydration, and hydrogenation. Due to the elimination of possible side-reactions, the selective catalysis is required to favour production of 1- butanol at temperature below 350 degrees C. The main aim of this work was the ethanol transformation via heterogeneous catalysis using active Mg-Al mixed oxides with copper or cobalt carried out in the microflow reactor in the reaction temperature interval 280-350 degrees C. The novelty lies in the statistical analysis of results from characterization of catalyst structure and surface with catalysis results providing more sophisticated perspective on the ethanol valorization. The series of Mg-Al catalysts containing copper showed an overall higher conversion of ethanol and selectivity to butanol compared to the series containing cobalt. Major difference of catalytic activity was at low reaction temperatures and at a lower copper content in the Mg- Al matrix, which is significant from the point of view of environmentally clean processes. A multi-step mechanism of the Guerbet reaction involving an aldol condensation was verified for both tested catalysts series and reaction conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Clean Technologies and Environmental Policy

ISSN

1618-954X

e-ISSN

1618-9558

Svazek periodika

26

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

79-92

Kód UT WoS článku

001040070900005

EID výsledku v databázi Scopus

2-s2.0-85166198049