Apparatus and Method for Direct Air Capture of CO2 Using Focused Solar Energy

Case ID:

This invention is a method of direct air capture (DAC) focusing on the capture of carbon emissions purely from sunlight alone. A modular, self-contained apparatus is used to capture dilute carbon dioxide (CO2) from a heat-based chemical reaction, then the energy is used to release the CO2 in concentrated form, for sequestration in the ground. The process can be repeated constantly while enabling a low-cost, more efficient method to generate the energy required for DAC of CO2. This cost-effective method offers a new approach to solving climate change problems.

With many direct air capture projects actively capturing and/or injecting CO2, the carbon capture and sequestration system is a driver in environmental change. However, existing methods utilize inefficient methods involving high-energy electrical systems that cost hundreds of dollars per ton to maintain, making high quality carbon capture difficult and expensive. This novel method of utilizing a modular, self-contained system based in carbon capture directly from sunlight eliminates high costs of current methods.


  • Direct air capture (DAC) of carbon dioxide
  • Carbon sequestration
  • Improved air quality
  • Reduce global warming


  • Cost-effective method
  • Utilizes heat-generated electricity
  • More efficient method of carbon sequestration
Patent Information:
Contact For More Information:
Jonathan Larson
Senior Licensing Manager, College of Science
The University of Arizona
Lead Inventor(s):
James Angel