TU Darmstadt / ULB / TUprints

Biomass‐Derived Aromatics by Solid Acid‐Catalyzed Aldol Condensation of Alkyl Methyl Ketones

Reif, Phillip ; Rosenthal, Hannah ; Rose, Marcus (2021):
Biomass‐Derived Aromatics by Solid Acid‐Catalyzed Aldol Condensation of Alkyl Methyl Ketones. (Publisher's Version)
In: Advanced Sustainable Systems, 10 (4), Wiley, ISSN 2366-7486,
DOI: 10.26083/tuprints-00019906,
[Article]

[img]
Preview
Text
adsu.201900150.pdf
Available under CC-BY-NC-ND 4.0 International - Creative Commons, Attribution NonCommercial, NoDerivs.

Download (734kB) | Preview
Item Type: Article
Origin: Secondary publication service
Status: Publisher's Version
Title: Biomass‐Derived Aromatics by Solid Acid‐Catalyzed Aldol Condensation of Alkyl Methyl Ketones
Language: English
Abstract:

Cyclotrimerization of biomass-based alkyl methyl ketones exhibits great potential as a route to biomass-derived aromatics by a sustainable valorization of biorefinery streams. In this study, acetone is used as a model reagent to screen solid acid catalysts for the aldol condensation reaction to the aromatic trimer mesitylene. From a broad catalyst screening promising activity is shown by the cation exchange resin Purolite CT275DR, the beta-zeolite H-BEA 35, and aluminosilicate Siralox 70/170 HPV which are used to further investigate reaction parameters. Acetone conversion and mesitylene yield increase with temperature and time, while yield of the intermediate mesityl oxide decreases. This effect is also found for higher quantities of catalyst acid sites and is accompanied with an increased side product formation which negatively affects total product selectivity. Analyzing the reaction progress shows a significant drop in catalyst productivity after an initial start-up phase. This observation is linked to a deactivation of the catalyst which involves water that is formed during the condensation reaction of acetone. Obtained results confirm the general viability of the aromatization of alkyl methyl ketones and can be considered the first step to an alternative sustainable route to biomass-derived aromatics compared to other currently discussed routes.

Journal or Publication Title: Advanced Sustainable Systems
Journal volume: 10
Number: 4
Publisher: Wiley
Collation: 9 Seiten
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Divisions: 07 Department of Chemistry > Fachgebiet Technische Chemie > Technische Chemie II
Date Deposited: 18 Nov 2021 10:49
Last Modified: 18 Nov 2021 10:49
DOI: 10.26083/tuprints-00019906
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-199068
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19906
Export:
Actions (login required)
View Item View Item