Lime Carbonation Direct Air Capture

Lime carbonation direct air capture (DAC) involves contacting calcium hydroxide (Ca(OH)2) material with atmospheric CO2 for the formation of stable carbonate minerals (CaCO3). Upon high-temperature heating, CO2 is released from CaCO3 within a controlled environment, producing a stream of CO2 which can be durably stored. This project focuses on developing engineered solutions to the kinetic constraints of the Ca(OH)2 carbonation reaction. Critically, this work also investigates aspects of the monitoring, reporting, and verification (MRV) of carbon credits produced by lime carbonation DAC and considers the impact which certain environmental variables may have on system techno-economics.