Oxy-Combustion CO2 Emissions Control
Staged, High-Pressure Oxy-Combustion Technology: Development and Scale-up
Project No.: DE-FE0009702
Washington University in St. Louis is developing a unique pressurized system to capture carbon from coal-fired power plants that incorporates a fuel-staged combustion approach. By staging the combustion, the temperature and heat transfer can be controlled. The potential benefits of the process are: higher efficiency, reduced process gas volume, increased radiative heat transfer, reduced oxygen demands, reduced capital equipment costs, increased CO2 purity entering the carbon compression and purification unit, and reduced auxiliary power demands. These benefits are expected to yield a lower cost of electricity than alternative approaches to pressurized oxy-combustion.
The specific objectives of the project are to obtain new knowledge regarding the benefits of a staged, pressurized oxyfuel process by:
- Developing a plant-wide technical and economic simulation
- Optimizing the system utilizing the ASPEN Plus modeling tool
- Conducting CFD-aided design of a novel staged combustion vessel and radiative heat exchanger
- Performing lab-scale experiments of staged combustion without flue gas recycle
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Simplified process flow diagram of a staged pressurized oxy-combustion plant. (click to enlarge) |
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Contacts:
- For further information on this project, contact the NETL Project Manager,Bruce Lani.
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