Liquid phase aromatization of bio-based ketones over a stable solid acid catalyst under batch and continuous flow conditions

• Published in: Catalysis communications Vol. 163; p. 106402
• Main Authors: Reif, Phillip, Gupta, Navneet Kumar, Rose, Marcus
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-03-2022; Elsevier
• Subjects: Acid catalyst; Aromatics; Biomass-derived ketones; Liquid phase catalysis; Zeolite; Aromatics; Biomass-derived ketones; Acid catalyst; Zeolite; Liquid phase catalysis
• ISSN: 1566-7367; 1873-3905
• DOI: 10.1016/j.catcom.2022.106402

Herein, we describe a one-step process for renewable aromatics from biomass-derived ketones over solid acid catalysts under liquid phase batch and flow conditions. The ion exchange resin was highly active for aromatics due to high acidic strength but leaching of acidic sites caused low stability. In contrary, zeolite HY showed a lower activity but higher stability in batch by regenerability and was stable in flow for 250 min-on-stream. HY is further applicable for the conversion of higher ketones (butanone and pentanone). This work contributes towards an industrially important aromatic production from biogenic ketones and thus an economical and sustainable process.
[Display omitted]
•Stable conversion of bio-derived ketones to aromatics is achieved in liquid phase.•Large pores and higher amount of acid sites are beneficial for the aromatization.•Highly active ion exchange resin showed continuous leaching of active sites.•HY-zeolite is found as a stable catalyst in batch as well as in flow conditions.•Suitability of HY-zeolite for aromatization of higher ketones is shown.