Calcium Looping Direct Air Capture (DAC) Model

Underwrite 1 million tonne/year direct air capture hubs utilizing natural calcium oxide (limestone) in circulating fluidized beds to absorb CO2 from ambient air, regenerating pure CO2 in 900°C oxy-fuel calciners (using zero proprietary chemicals or rare sorbents). Model DAC carbon removal contracts ($220/t CO2), and 25-yr IRR.