The innovators trying to bring down the sky-high cost of direct air capture
by Mike Scott, reuters.com, October 24, 2023
„Summary
- Key divide in DAC is between processes that use high and low temperatures to capture CO2
- Low-temperature solid sorbent systems can use solar, wind, geothermal and waste nuclear power heat, but high-temperature liquid solvent systems rely on natural gas and are less expensive
- All are innovating to cut energy use.
- Alternative technologies being used to capture the CO2 include membrane separation using zeolites and electro-swing absorption.“