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Towards an intensified process of biomass-derived monomers: The influence of HMF by-products on gold-catalyzed synthesis of 2,5-furandicarboxylic acid

Naim, Weiss; Schade, Oliver R.; Saraci, Erisa; Wüst, Dominik; Kruse, Andrea; Grunwaldt, Jan-Dierk


The utilization of biomass and development of intensified processes are essential to establish a sustainable production of chemicals in the future. Herein, we report on a strategy that allows one to directly convert the biomass-derived platform molecule 5-(hydroxymethyl)furfural (HMF) over Au/ZrO2 in aqueous medium to 2,5-furandicarboxylic acid (FDCA), a renewable building block for biobased polymers like polyethylene furanoate. The focus lies on identifying the influence of 5-(hydroxymethyl)furfural synthesis byproducts, like unconverted sugars, levulinic acid, and formic acid as well as the remaining inorganics, on the synthesis of 2,5-furandicarboxylic acid to save the intermediate step of HMF purification. These components were added to the reaction mixture individually and in combination to study their effect. Although most of these substances lowered the FDCA yield, the reaction conditions could be optimized to produce FDCA quantitatively. Only the addition of levulinic acid led to a severe deterioration of the production of FDCA, which was attributed to poisoning of the catalyst. In a realistic technical scenario, the direct oxidation of impure HMF from unconcentrated sugar syrup in high FDCA yield (74%) was demonstrated. ... mehr

Postprint §
DOI: 10.5445/IR/1000121032
Veröffentlicht am 08.07.2021
DOI: 10.1021/acssuschemeng.0c01319
Zitationen: 15
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -technologie (IKFT)
Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2168-0485, 2168-0485
KITopen-ID: 1000121032
HGF-Programm 37.03.01 (POF III, LK 01) Catalysts and Mechanisms
Erschienen in ACS sustainable chemistry & engineering
Verlag American Chemical Society (ACS)
Band 8
Heft 31
Seiten 11512–11521
Vorab online veröffentlicht am 07.07.2020
Schlagwörter Biorefinery, Biomass, Intensification, HMF, FDCA, Byproducts, Gold, Deactivation
Nachgewiesen in Dimensions
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