Available Technology

Hybrid Process for Post-Combustion CO2 Capture

Research is active on the patent pending technology titled, "Method for the Separation of a Gaseous Component Using a Solvent-Membrane Capture Process.” This technology is available for licensing and/or further collaborative research from the U.S. Department of Energy’s National Energy Technology Laboratory.
The current invention describes a hybrid process for post-combustion CO2capture using a solvent-based absorption/high pressure stripping gas step coupled with selective CO2membrane separation. The method is unique in that the solvent-based absorption/stripping process uses thermal compression to efficiently increase the concentration and partial pressure of CO2in the gas mixture, allowing for more efficient membrane separation. The hybrid process integrates the most efficient aspects of each method resulting in a reduction of the parasitic energy demand of the post-combustion CO2capture process.
Process reduces energy consumption, footprint, and capital costs -Reduces the need for mechanical compression of the mixed flue gas stream -Reduces the amount of membrane area required for CO2separation -Process is compatible with a range of stripping gases, solvents, and membrane systems -Deployment of this process will make CO2capture more economical
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