Delmelle, Renaud
[UCL]
Saraiva Rocha da Silva, Fernando
[UCL]
Georgiadis, Christos
[UCL]
Lambrechts, Jonathan
[UCL]
Proost, Joris
[UCL]
Initial laboratory results using 3-D electrodes with forced electrolyte flow indicate a significant process intensification potential. This work aims to validate this process intensification on a larger scale, using a pilot-scale alkaline water electrolyser with a 6 kW cell stack working in the ranges 5-10 bar, 20-70°C and with 30% KOH. This pilot plant is also representative of industrial electrolysers in terms of gas collection, cell stacking and current distribution. In addition, it has been modified to allow for forced electrolyte flow using KOH compatible pumps. The pilot system was first validated using standard 2-D electrodes and showed state-of-the-art results. Various cell stacks with 3-D electrodes were then tested under conditions of forced flow, showing interesting intensification potential. However, obstacles in terms of stack design still limit the flow effect. The latter are currently being tackled using CFD simulation tools.


Bibliographic reference |
Delmelle, Renaud ; Saraiva Rocha da Silva, Fernando ; Georgiadis, Christos ; Lambrechts, Jonathan ; Proost, Joris. Upscaling high performance 3-D electrodes for alkaline water electrolysis towards near-industrial conditions.23rd World Hydrogen Energy Conference (WHEC-2022) (Istanbul, Turkey, du 26/06/2022 au 30/06/2022). In: WHEC-2022 Abstract Book, 2022, p. 51 |
Permanent URL |
http://hdl.handle.net/2078.1/272720 |