Laboratory for Electrochemical Energy SystemsOpen OpportunitiesRapid emission reductions are needed so that the Paris Agreement's target to limit global warming to well below 2°C remains attainable. Pathways in line with this target presume a swift transition to low-carbon energy sources and – on top – the deployment of carbon dioxide removal (CDR) technologies to remove historic emissions and compensate for emissions that cannot be completely eliminated.
Direct air capture (DAC) with carbon dioxode (CO2) storage offers a scalable, permanent, and relatively easily measurable, reportable, and verifiable CDR method. However, DAC technologies are still in their infancy and high costs have hindered large-scale deployment of DAC. While there are advantages to DAC in its potential to address emissions from distributed sources, the development and deployment of DAC systems has been limited by their high cost and energy requirements.[1] Most research and development has focused on solid sorbent and liquid solvent DAC, both of which use thermal and electrical energy.
To overcome the high energy requirements of DAC systems using thermal energy, electrochemical DAC systems have been recognized as a promising alternative due to their potentially lower energy consumption at lower temperatures and pressures. [2] However, the technological maturity of electrochemical DAC systems is low, with most systems still at laboratory scale. It remains to be assessed how they compare with DAC systems using thermal energy.
References:
[1] doi.org/10.1016/j.joule.2024.02.005
[2] doi.org/10.1039/D0EE03382K - Chemical Engineering, Electrochemistry, Environmental Engineering, Finance Economics, Interdisciplinary Engineering, Mechanical and Industrial Engineering, Other Chemistry, Policy and Political Science
- ETH Zurich (ETHZ), Master Thesis
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