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.“

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