Large Bench Scale Development of Non-Aqueous Solvent Carbon Dioxide Capture Process for Coal Fired Power Plants Utilizing Real Coal Derived Flue Gas Email Page
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Performer:  Research Triangle Institute (RTI) Location:  Research Triangle Park, North Carolina
Project Duration:  10/01/2015 – 12/31/2018 Award Number:  FE0026466
Technology Area:  Post-Combustion Capture Total Award Value:  $4,532,652
Key Technology:  Solvents DOE Share:  $3,468,584
Performer Share:  $1,064,068

Slipstream Solvent Test Unit at the NCCC (left) SINTEF’s Tiller Pilot Plant (right)
Slipstream Solvent Test Unit at the NCCC (left) SINTEF’s Tiller Pilot Plant (right)

Project Description

Research Triangle Institute (RTI) International has teamed with Linde, LLC, and SINTEF Petroleum Research to continue the advancement of RTI’s water-lean solvent-based carbon dioxide (CO2) capture process by testing it at up to 60-kW bench scale using actual coal-derived flue gas and validating its potential to reduce the parasitic energy penalty associated with the capture of CO2 from flue gas. The water-lean solvent will be tested, using coal-fired flue gas, at both SINTEF’s pilot plant facility (Tiller Plant) and at the National Carbon Capture Center’s Slipstream Solvent Test Unit. The largest energy demand in state-of-the-art solvent-based CO2 capture processes comes from regenerating the solvent to remove the captured CO2. RTI’s water-lean solvent technology was previously proven, using simulated flue gas at a smaller scale, to have low-regneration temperatures, allowing use of lower-quality steam. The project objectives are to validate the process using coal-derived flue gas, test the process at a significantly larger scale at the Tiller Plant, and finalize the solvent chemistry to further increase hydrophobicity that will simplify and enhance the process operation. Data obtained from testing will be used to perform a techno-economic analysis, the results of which will determine the potential for the water-lean solvent-based CO2 capture process to achieve the U.S. Department of Energy’s (DOE) technical and CO2 capture cost targets.

Predecessor Project:
FE0013865

Project Benefits

Testing the water-lean solvent 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. In addition, it 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.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Steven Mascaro: steven.mascaro@netl.doe.gov
Technology Manager Lynn Brickett: lynn.brickett@netl.doe.gov
Principal Investigator Jim Zhou: szhou@rti.org