Hybrid Encapsulated Ionic Liquids for Post-Combustion Carbon Dioxide Capture Email Page
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Performer:  University of Notre Dame Location:  Notre Dame, Indiana
Project Duration:  10/01/2015 – 03/31/2019 Award Number:  FE0026465
Technology Area:  Post-Combustion Capture Total Award Value:  $2,487,731
Key Technology:  Solvents DOE Share:  $1,525,079
Performer Share:  $962,652

Schematic of encapsulated CO<sub>2</sub> capture process<br/>using aqueous carbonate absorbents
Schematic of encapsulated CO2 capture process
using aqueous carbonate absorbents

Project Description

This University of Notre Dame, in collaboration with Lawrence Livermore National Laboratory (LLNL), will test the use of hybrid encapsulated ionic liquid (IL) and/or phase change ionic liquid (PCIL) materials for post-combustion carbon dioxide (CO2) capture. Promising ILs and/or PCILs have proved to be prohibitively viscous for large scale commercial operation when configured in conventional absorption/regeneration systems. Encapsulated ILs and PCILs have high surface areas, allowing researchers to break through the mass transfer barriers caused by high viscosities. The team will combine the advantages of two recently proven technologies—Notre Dame’s IL and PCIL materials with high capacity and low regeneration energy, and LLNL’s microencapsulation in polymer shells—to make and test high surface area materials specifically engineered for high-efficiency CO2 capture from post-combustion flue gas. The expected outcome of this project will be successful synthesis of the microencapsulated ILs and/or PCILs and validated CO2 removal from simulated flue gas in a laboratory-scale unit with dramatically improved mass transfer.

Project Benefits

The encapsulation of ILs and PCILs in micrometer sized shells is projected to increase the mass transfer area by an order of magnitude or more, dramatically reducing the capital costs of the absorber and regenerator in CO2 capture systems. Successful development of microencapsulated ILs and/or PCILs will provide a clear pathway toward achieving DOE’s goal of 90 percent CO2 capture with 95 percent CO2 purity at a cost of electricity 30 percent less than baseline aqueous amine technologies.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager David Lang: david.lang@netl.doe.gov
Technology Manager Lynn Brickett: lynn.brickett@netl.doe.gov
Principal Investigator Joan Brennecke: jfb@nd.edu