Integration of Wind Turbines and CO2 Capturing Filter

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Researchers at Purdue University have developed a system to capture CO2 from the air and use it to make calcium carbonate for cement or other applications. Large-scale carbon capture technologies are needed to slow climate change and ocean acidification and prevent global warming above 2.0 degrees Celsius. The Purdue researchers' technology uses a wind turbine to capture CO2 and provide the energy to a liquid filter system that absorbs CO2 by injecting polluted air from point sources or other air with concentrated CO2 into a water-calcium hydroxide solution. The carbon dioxide reacts with the calcium hydroxide, forming calcium carbonate, which can be used for concrete production, among other applications. This technology could have a large impact on "closing the loop" in concrete production, which accounts for 8% of global CO2 emissions. The researchers have also proposed installing the filtration component of the system in the exhaust of vehicles, which will capture concentrated CO2 streams.

Technology Validation: In a simulation, the energy transmission of the wind turbine was 78% efficient. The production of the prototype of liquid filter assembled with wind turbine system is ongoing.

- Reduces atmospheric CO2 concentration
- Traps other pollutants like NOx
- Slows climate change and ocean acidification
- Allows reuse of wastewater with high pH from different industries, including the corn processing industry
- Reduces demand for wastewater treatment

- CO2 removal from the atmosphere
- Concrete production with reduced abiotic depletion
- CO2 removal from transport exhausts and from industries’ point of CO2 emissions
May 19, 2022
United States
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486