MATERIALS, SYSTEMS, AND METHODS FOR CO2 CAPTURE AND CONVERSION

During the transition from conventional fossil fuel usage to renewable forms of energy, environmentally friendly CO2 capture mechanisms are urgently needed. Currently, amine-based technologies (involving monoethanolamine) are being used from this purpose. However, this approach poses additional concerns including toxicity due to emissions of the used volatile solvent components of the amine-based compounds. Ionic liquids are being studied extensively owing to their array of interesting properties including tunability and CO2 absorption. Herein, we report a concept and related experiments for the development of a thermally-activated reusable material paradigm based on ionic liquids (including fluorinated cations) called Reusable Carbon-dioxide Absorber (RCA). The designed system effects CO2 capture by heat localization using solar energy and its conversion into useful byproducts including precipitated calcium carbonate and water.

App TypeCase No.CountryPatent/Publication No.
InquireDivisional2018-015United States11,964,230