Supersonic Post-Combustion Inertial CO2 Extraction System Email Page
Print This Page
Performer: Alliant Techsystems Operations LLC
Configuration of an individual Inertial CO<sub>2</sub><br/>Extraction System (ICES)
Configuration of an individual Inertial CO2
Extraction System (ICES)
Website: Orbital ATK, Inc.
Award Number: FE0013122
Project Duration: 10/01/2013 – 03/31/2018
Total Award Value: $3,749,591
DOE Share: $2,999,951
Performer Share: $749,640
Technology Area: Post-Combustion Capture
Key Technology: Novel Concepts
Location: Ronkonkoma, New York

Project Description

Orbital ATK, Inc., along with their partners, are continuing the development of a novel Inertial Carbon Dioxide Extraction System (ICES) for carbon dioxide (CO2) capture from coal-fired power plants through lab- and bench-scale testing. The ICES converts vapor-phase CO2 contained in flue gas to a solid (dry ice) using supersonic expansion followed by inertial separation. This method utilizes a unique aero-thermodynamic inertial separation device, in which flue gas is directed to a converging-diverging nozzle and expanded to supersonic velocities, resulting in the desublimation and separation of CO2. Solid CO2 particle growth methods will be tested at lab scale to obtain a condensed CO2 particle size required to support efficient migration in the ICES turning duct. Computational fluid dynamics modeling for the capture duct and diffuser will be performed to evaluate configurations of the bench-scale unit, validate laboratory test results, and predict performance of the full-scale ICES unit. The capture duct will be tested at bench-scale while controlling CO2 particle size to measure the capture efficiency of migrated particles. The diffuser will be tested to evaluate diffusion of CO2-depleted flue gas to atmospheric pressure. A series of bench-scale tests will be conducted to validate the effectiveness of several particle growth strategies. An update to the techno-economic analysis will be completed.

Project Benefits

The ICES CO2 separation technology has advantages over conventional technologies for capturing CO2 from post-combustion coal-fired power plants. The small footprint and very low parasitic load required for deployment of the ICES system at power plant scale enables retrofit options that are not likely to be possible with competitive approaches using absorption, adsorption, and membrane technologies. Completion of the project will progress the technology along the path toward pilot-scale testing and eventual commercial applications.

Contact Information

Federal Project Manager Andrew O'Palko:
Technology Manager Lynn Brickett:
Principal Investigator Vladimir Balepin:


Click to view Presentations, Papers, and Publications