The long-term performance of reconstructed MgAl hydrotalcite in the aldol condensation of furfural and acetone

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F21%3AN0000031" target="_blank" >RIV/62243136:_____/21:N0000031 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11144-021-01976-z" target="_blank" >https://link.springer.com/article/10.1007/s11144-021-01976-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11144-021-01976-z" target="_blank" >10.1007/s11144-021-01976-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The long-term performance of reconstructed MgAl hydrotalcite in the aldol condensation of furfural and acetone

Popis výsledku v původním jazyce

The scale-up procedure of the acetone-furfural aldol condensation was studied on Mg-Al mixed oxide (molar ratio of 3:1). The catalyst’s stability was evaluated in three consecutive condensation steps at 60–70 °C, WHSV = 1.6–2/h-1 and the acetone-furfural molar ratio of 5:1 (mol:mol). After each condensation step, the catalyst’s reactivation was performed at 450 °C, ambient pressure under 50 NL/h nitrogen flow for 4 h. The experiments showed that catalyst deactivation was an effect related to the amount of treated feedstock. Moreover, our results showed the possibility of deactivation compensation by increasing reaction temperature or decreasing feeding rate. From a reaction mechanism point of view, furfural reacted first with acetone to FAc (4-(2-furyl)-3-buten-2-one), a crucial compound for heavier compounds formation.

Název v anglickém jazyce

The long-term performance of reconstructed MgAl hydrotalcite in the aldol condensation of furfural and acetone

Popis výsledku anglicky

The scale-up procedure of the acetone-furfural aldol condensation was studied on Mg-Al mixed oxide (molar ratio of 3:1). The catalyst’s stability was evaluated in three consecutive condensation steps at 60–70 °C, WHSV = 1.6–2/h-1 and the acetone-furfural molar ratio of 5:1 (mol:mol). After each condensation step, the catalyst’s reactivation was performed at 450 °C, ambient pressure under 50 NL/h nitrogen flow for 4 h. The experiments showed that catalyst deactivation was an effect related to the amount of treated feedstock. Moreover, our results showed the possibility of deactivation compensation by increasing reaction temperature or decreasing feeding rate. From a reaction mechanism point of view, furfural reacted first with acetone to FAc (4-(2-furyl)-3-buten-2-one), a crucial compound for heavier compounds formation.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20400 - Chemical engineering

Projekt

<a href="/cs/project/LM2018119" target="_blank" >LM2018119: Katalytické procesy pro efektivní využití uhlíkatých energetických surovin</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Reaction Kinetics, Mechanisms and Catalysis

ISSN

1878-5204

e-ISSN

—

Svazek periodika

133

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85104091132