Advanced Integrated Reticular Sorbent-Coated System to Capture CO2 using an Additively Manufactured Contactor (AIR2CO2 Contactor) GE Research (Niskayuna, New York) and partners University of California–Berkeley and University of South Alabama seek to overcome challenges to DAC by developing an advanced integrated reticular sorbent-coated system to capture CO2 using an additively manufactured contactor. The team’s key objective will be to demonstrate the feasibility of a 1 kg CO2/day, bench-scale system that integrates a low-pressure drop, additively manufactured contactor and an advanced metal-organic framework sorbent to capture and release atmospheric CO2.

DOE Funding: $1,499,998; Non-DOE Funding: $500,000; Total:  $1,999,998


Hybridizing heat-integrated 3D printed modules with mass manufacturable, low pressure drop fiber sorbents Georgia Institute of Technology (Atlanta, Georgia) seeks to partner with Oak Ridge National Laboratory, Reactwell Inc. and Trimeric Inc. to research, develop and evaluate a modular DAC system that is simple and scalable. This system will be based on the adsorption of CO2 into commercial polyamines supported by porous fiber sorbents, which can be produced at kilometer-per-hour scales using a pre-pilot spinning line.

DOE Funding: $1,466,770; Non-DOE Funding: $366,706; Total: $1,833,476


Energy-Efficient Direct Air Capture System for High Purity CO2 Separation — University of Cincinnati (Cincinnati, Ohio) researchers plan to collaborate with researchers from the University of Michigan to demonstrate DAC sorbent technology using a robust, energy-efficient and cost-effective sorbent in a monolith structure and evaluate the techno-economic feasibility of the DAC process.  The proposed project will also demonstrate a proof-of-concept novel passive air contactor design to reduce operating costs.

DOE Funding: $1,499,998; Non-DOE Funding: $375,050; Total: $1,875,048


Electrochemically Regenerated Solvent for Direct Air Capture with Cogeneration of Hydrogen at Bench-ScaleUniversity of Kentucky Center for Applied Energy Research (Lexington, Kentucky) plans to partner with Vanderbilt University and Electric Power Research Institute to create an intensified, cost-effective and easily scalable process using aqueous potassium hydroxide as a capture solvent for DAC. The process will employ a hybrid membrane absorber coupled with an electrochemical solvent regenerator that extracts CO2 from air, which will enrich carbon content in the solution after capture and simultaneously refresh the capture solvent while producing hydrogen to offset the cost of DAC.

DOE Funding: $1,263,887; Non-DOE Funding: $316,517; Total: $1,580,404