The U.S. Department of Energy’s Office of Fossil Energy picked four projects aimed at reducing the energy and cost penalties of advanced carbon capture systems applied to power plants for further development.
The research is valued at approximately $67 million, including $15 million in non-federal cost sharing, over four years. It is for the research to develop carbon dioxide capture and separation technologies that can achieve at least 90 percent carbon dioxide (CO2) removal at no more than a 35 percent increase in the cost of electricity.
The projects, managed by FE’s National Energy Technology Laboratory include:
- Linde LLC of Murray Hill, N.J. - Slipstream Pilot Scale Demonstration of a Novel Amine-Based Post-Combustion Process Technology for CO2 Capture from Coal-Fired Power Plant Flue Gas
The proposed project will use a post combustion capture technology incorporating BASF’s novel amine-based process at a 1 MWe equivalent slipstream pilot plant at the National Carbon Capture Center. This technology aims to reduce the regeneration energy requirements using novel solvents that are stable under the coal-fired power plant feed gas conditions. The Department of Energy will contribute $15,000,000 to the project.
- Neumann Systems Group, Inc. of Colorado Springs, Colo. – Carbon Absorber Retrofit Equipment (CARE)
This project, located at the Colorado Springs Utilities' Drake No. 7 power plant, will design, construct, and test a patented NeuStream absorber. The absorber will use nozzle technology proven during a recently completed 20 MW NeuStream-S flue gas desulfurization pilot project, and an advanced solvent that captures CO2. This absorber technology is applicable to a variety of solvents and can be added to existing pulverized coal power plants with reduced cost and footprint. Because of the modularity of the NeuStream technology, it can be rapidly scaled to larger size systems and retrofitted into existing plants. The Department of Energy will contribute $7,165,423 to the project.
- Southern Co. of Atlanta, Ga. – Development and Demonstration of Waste Heat Integration with Solvent Process for More Efficient CO2 Removal from Coal-Fired Flue Gas
Southern Co. will develop viable heat integration methods for the capture of CO2 produced from pulverized coal combustion using a waste heat recovery technology high efficiency system. This technology will be integrated into an existing 25 MW pilot amine-based CO2 capture process (KM-CDR) at Southern Co’s Plant Barry. Modeling by Mitsubishi Heavy Industries America indicates that a fully heat integrated high efficiency system will improve by 26 percent the thermal energy performance of the integrated KM-CDR and plant operation. The Department of Energy will contribute $15,000,000 to the project.
- University of Kentucky Research Foundation of Lexington, Ky. - Application of a Heat Integrated Post-Combustion CO2 Capture System with Hitachi Advanced Solvent into Existing Coal-Fired Power Plant
Researchers plan to use an innovative heat integration method that uses waste heat from a Hitachi H3-1 advanced solvent carbon capture system while improving steam turbine efficiency. The proposed process also implements a process concept working with the heat integration method that increases solvent capacity and capture rate in the CO2 scrubber. The Department of Energy will contribute $14,502,144 to the project.
Existing carbon capture systems currently require large amounts of energy for their operation, resulting in decreased efficiency and reduced net power output when compared to plants without CCUS technology. These penalties can add as much as 80 percent to the cost of electricity for a new pulverized coal plant.
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