South Korea-based CarbonCo, a subsidiary of construction group DL E&C, has developed a new carbon dioxide absorbent designed to reduce energy consumption in carbon capture processes. The material targets emissions from power plants and industrial sites, where energy efficiency is crucial.
The absorbent is intended for post-combustion CO2 capture and requires 2.15 gigajoules of energy to capture one tonne of CO2. According to CarbonCo, this is more than 46% lower than the energy required by absorbents based on monoethanolamine (MEA), a solvent widely used to separate CO2 from flue gas in carbon capture systems.
Studies suggest MEA-based systems typically consume between 3.7 and 4.6 gigajoules per tonne, with most of that energy used to regenerate the solvent. This energy cost is a factor that has limited the economic viability of large-scale carbon capture.
The absorbent’s performance was tested at the Alberta Carbon Conversion Technology Centre in Canada, using a pilot-scale facility with a capacity of six tonnes per day.
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