Potassium-modified bifunctional MgAl-SBA-15 for aldol condensation of furfural and acetone

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43926666" target="_blank" >RIV/60461373:22310/23:43926666 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22320/23:43926666 RIV/60461373:22350/23:43926666

Result on the web

<a href="https://pubs.rsc.org/en/content/articlehtml/2023/se/d3se00444a?page=search" target="_blank" >https://pubs.rsc.org/en/content/articlehtml/2023/se/d3se00444a?page=search</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d3se00444a" target="_blank" >10.1039/d3se00444a</a>

Result language

angličtina

Original language name

Potassium-modified bifunctional MgAl-SBA-15 for aldol condensation of furfural and acetone

Original language description

The aldol condensation of furfural and acetone followed by hydrodeoxygenation into bio-jet fuel range alkanes and bio-polyester diols has attracted intensive interest in recent years. Such sequential reactions require a careful tailoring of one or more catalysts consisting of metal and acid–base active sites that can efficiently promote the two step cascade aldol condensation and hydrodeoxygenation. Here, we have begun developing a prominent base catalyst for mild aldol condensation of furfural and acetone by synthesizing acid–base bifunctional MgAl-SBA-15 and further modifying it with potassium. The catalyst with the highest basic site loading of 0.27 mmol g−1 showed a furfural conversion of 83% and 99% total selectivity to products comprising 54% 4-(2-furyl)-4-hydroxy-butan-2-one (FAc-OH, a C8 alcohol intermediate) and 23% of each 4-(2-furyl)-3-buten-2-one (FAc) and 1,4-pentadiene-3-one,1,5-di-2-furanyl (F2Ac) (C8 and C13 aldol condensation products, respectively) after 3 hours of reaction, at 50 °C. Though a higher loading of potassium causes severe blockages of mesopores and inaccessible acid sites, the catalyst could still be regenerated by open-air calcination and be re-used for considerable cycles with fair catalytic performances. Overall, the present study can be the stepping stone for future investigations on further tuning of non-interfering active sites in SBA-15 to promote an efficient one-pot transformation of furfural and acetone via the two-step cascade aldol condensation and hydrodeoxygenation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20704 - Energy and fuels

Project

—

Continuities

O - Projekt operacniho programu

Publication year

2023

Confidentiality

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

Name of the periodical

Sustainable Energy and Fuels

ISSN

2398-4902

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

13

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

3047-3059

UT code for WoS article

000998994900001

EID of the result in the Scopus database

2-s2.0-85164963925