CCS and Power Systems
Advanced Energy Systems - Gasification Systems
Coal - Carbon Dioxide (CO2) Slurry Feeding System for Pressurized Gasifiers
Performer: Massachusetts Institute of Technology
Project No: FE0012500
Program Background and Project Benefits
The Massachusetts Institute of Technology project is developing and assessing a coal-CO2 slurry feeding system. As opposed to conventional coal-water slurry feeding, the coal-CO2 slurry feeding approach avoids the thermal efficiency loss incurred by addition of slurry water, particularly when feeding low-rank coals already high in moisture content, and allows high-pressure operation while avoiding the high capital cost and limited pressure range of dry coal feeding using lock-hopper technology. This new coal feeding method has the potential to improve the efficiency and economics of coal-based power generation with carbon capture and reduce the costs of converting coal to gasoline and diesel fuels.