Reference : Design and Evaluation of a High-Density Energy Storage Route with CO2 Re-Use, Water E...
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
Design and Evaluation of a High-Density Energy Storage Route with CO2 Re-Use, Water Electrolysis and Methanol Synthesis
[fr] Design et évaluation d'une voie de stockage d'énergie à haute densité avec réutilisation de CO2, électrolyse de l'eau et synthèse de méthanol
Léonard, Grégoire mailto [Université de Liège > Department of Chemical Engineering > Intensif.des procéd. de l'indust.chim.basée sur l'anal.syst. >]
Giulini, Davide [> >]
Villarreal-Singer, Diego [> >]
Computer Aided Chemical Engineering
Proceedings of the 26th European Symposium on Computer Aided Process Engineering – ESCAPE 26
The Netherlands
[en] Power-to-fuel ; Energy storage ; Process modelling ; Heat integration
[en] The energy transition corresponding to more electricity generation from variable and
decentralized renewable energy sources requires the development of electricity storage
technologies ranging from seconds to seasons. The power-to-fuel process provides a
way to store electricity as a liquid energy vector, leading to high energy density and
cheap long-term storage at ambient conditions. In the present work, we study the powerto-
methanol process combining CO2 capture, water/CO2 co-electrolysis and methanol
synthesis. An Aspen Plus model focussing on the electrolysis and methanol synthesis
sub-processes is presented. The energy conversion efficiency is improved from 40.1 to
53.0 % thanks to heat integration using the pinch method. Further works include the
experimental demonstration of this technology as well as the development of control
strategies for its regulation.

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