Emissions from a power plant. Image courtesy of Pxhere.org

Emissions from a power plant. Image courtesy of Pxhere.org

By XiaoZhi Lim
Chemical & Engineering News

Capturing and using carbon dioxide produced by power plants and other sources could help meet climate emissions goals. In theory, CO2 is easy to capture. Because it’s acidic, it reacts readily with simple bases such as amines. But in practice, amine scrubbing, the CO2-capture method used by some power plants to clean flue gases, gets bogged down because it traps the greenhouse gas in water-based solutions. Heating these large amounts of water to release the captured CO2 and regenerate the amines requires a great deal of energy.

To address this challenge, Fuyuhiko Inagaki and his research team at Kanazawa University report a family of amines that absorb CO2 but not water, potentially reducing the amount of energy needed to run the scrubbing process (J. Am. Chem. Soc. 2017, DOI: 10.1021/jacs.7b01049).

 

Continue reading at Chemical & Engineering News. Originally published on April 13, 2017.

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