Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.fuel.2023.129590
Document author version
Title (Primary) Electrolysis of medium chain carboxylic acids to aviation fuel at technical scale
Author Rosa, L.F.M.; Röhring, K.; Harnisch, F. ORCID logo
Source Titel Fuel
Year 2024
Department MIBITECH
Volume 356
Page From art. 129590
Language englisch
Topic T7 Bioeconomy
Keywords Biobased drop-in fuel; Electrolysis; Electrofuels; Electrochemical engineering; Electrobiorefinieries
Abstract For mobility, especially in aviation, cargo weight and volume of the energy vector are substantially more limited than in any other form of transportation. Therefore, energy vectors with high mass and volume specific energy density are needed, for which carbon based liquid fuels are unmatched. Concurrently, there is an imperative of deriving these fuels from non-fossil sources. Here, we show the scale-up of the production of aviation drop-in fuel-like mixtures (mainly n-decane) that are obtained by Kolbe electrolysis of medium chain carboxylic acids (n-hexanoic acid), which can be derived from biomass. We increased the scale to 1 L volume and 100 cm2 electrode surface area within a single stack electrolysis cell allowing straightforward numbering-up. The obtained electrolysis performance is unprecedented at technical scale with a maximum n-decane production rate of 0.73 g L−1h−1 cm−2, a selectivity for n-decane between 76.3 % and 97.8 % and Coulombic efficiencies up to 68 %.
Persistent UFZ Identifier
Rosa, L.F.M., Röhring, K., Harnisch, F. (2024):
Electrolysis of medium chain carboxylic acids to aviation fuel at technical scale
Fuel 356 , art. 129590 10.1016/j.fuel.2023.129590