As of 2023, there were two approaches used to capture carbon dioxide (CO₂) through direct air capture (DAC) technologies. These are Liquid DAC (L-DAC) and Solid DAC (S-DAC), both of which are energy intensive processes. L-DAC required around 6.6 Gj/tCO₂, while S-DAC energy needs were 9.5 Gj/tCO₂.
Energy needs of direct air capture (DAC) worldwide as of 2023, by approach
(in gigajoules per metric ton of carbon dioxide)
Characteristic
Low-temperature heat
High-temperature heat
Electricity
Electricity for CO2 compression only
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IEA. (July 10, 2023). Energy needs of direct air capture (DAC) worldwide as of 2023, by approach (in gigajoules per metric ton of carbon dioxide) [Graph]. In Statista. Retrieved September 01, 2024, from https://www.statista.com/statistics/1488877/direct-air-capture-energy-needs-by-type/
IEA. "Energy needs of direct air capture (DAC) worldwide as of 2023, by approach (in gigajoules per metric ton of carbon dioxide)." Chart. July 10, 2023. Statista. Accessed September 01, 2024. https://www.statista.com/statistics/1488877/direct-air-capture-energy-needs-by-type/
IEA. (2023). Energy needs of direct air capture (DAC) worldwide as of 2023, by approach (in gigajoules per metric ton of carbon dioxide). Statista. Statista Inc.. Accessed: September 01, 2024. https://www.statista.com/statistics/1488877/direct-air-capture-energy-needs-by-type/
IEA. "Energy Needs of Direct Air Capture (Dac) Worldwide as of 2023, by Approach (in Gigajoules per Metric Ton of Carbon Dioxide)." Statista, Statista Inc., 10 Jul 2023, https://www.statista.com/statistics/1488877/direct-air-capture-energy-needs-by-type/
IEA, Energy needs of direct air capture (DAC) worldwide as of 2023, by approach (in gigajoules per metric ton of carbon dioxide) Statista, https://www.statista.com/statistics/1488877/direct-air-capture-energy-needs-by-type/ (last visited September 01, 2024)
Energy needs of direct air capture (DAC) worldwide as of 2023, by approach (in gigajoules per metric ton of carbon dioxide) [Graph], IEA, July 10, 2023. [Online]. Available: https://www.statista.com/statistics/1488877/direct-air-capture-energy-needs-by-type/