Large Bench Scale Development of Non-Aqueous Solvent Carbon Dioxide Capture Process for Coal Fired Power Plants Utilizing Real Coal Derived Flue Gas


SINTEF's Tiller Plant
SINTEF's Tiller Plant
Research Triangle Institute
Website:  Research Triangle Institute
Award Number:  FE0026466
Project Duration:  10/01/2015 – 09/30/2018
Total Award Value:  $4,532,652
DOE Share:  $3,468,584
Performer Share:  $1,064,068
Technology Area:  Post-Combustion Capture
Key Technology:  Solvents
Location:  Research Triangle Park, North Carolina

Project Description

Research Triangle Institute (RTI) International, in conjunction with SINTEF, will continue the advancement of their water-lean solvent-based carbon dioxide (CO2) capture process by testing it up to a 60 kW bench scale using actual coal-derived flue gas and showing its potential to reduce the parasitic energy penalty associated with the capture of CO2 from flue gas. SINTEF maintains a world-class pilot plant facility (Tiller Plant) for CO2 capture that will be modified for testing the water-lean solvent in this project. The largest energy demand in solvent-based CO2 capture processes comes from regenerating the solvent to remove the captured CO2. RTI designed their solvent-based process with a holistic approach that simultaneously considers all contributing factors to lower the regeneration energy. The solvent technology was previously proven using simulated flue gas at a smaller scale. The project objectives are to validate the process in the modified Tiller Plant using coal-derived flue gas, test the process at a significantly larger scale, and finalize the solvent chemistry to further increase hydrophobicity that will simplify and enhance the process operation. Data obtained from the SINTEF testing will be used to perform a techno-economic analysis. The results of the techno-economic analysis will determine the potential for the water-lean solvent-based CO2 capture process to achieve DOE's technical and CO2 capture cost targets. An EH&S assessment will also be completed to identify the hazards and risks of the next scale-up stage.

Predecessor Project:

Project Benefits

Testing the NAS process with actual coal-derived flue gas at a larger scale with all major process components will establish the benefits of the process while advancing the readiness of the technology for commercial deployment. A successful outcome will improve the confidence of the cost estimates of a scaled-up plant, validating the economic viability of the technology. This technology is anticipated to reduce the energy required to remove CO2 from coal-fired flue gas by approximately 50 percent, decreasing the increased cost of electricity for CO2 capture by 35 percent compared to the current state-of-the-art technologies.

Contact Information

Federal Project Manager 
Steven Mascaro:
Technology Manager 
Lynn Brickett:
Principal Investigator 
Jim Zhou:

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