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More economical capture of greenhouse gases from coal-fired power plants with oxy-fired pressurized fluidized bed combustion

 

In the oxy-fired pressurized fluidized bed combustion (Oxy-PFBC) project, researchers are realizing the benefits of a novel process to economically capture greenhouse gases emitted by coal-fired power plants, offering electric power generation with near-zero emissions.

In oxy-fuel combustion, fuel is burned using pure oxygen instead of air to produce heat that generates electricity without the production of Nitric Oxide (NOx) emissions. The combustion process using pressurized oxygen and recycled carbon dioxide gas improves process efficiency and concentrates the carbon dioxide produced prior to combustion of fuel in the turbine, thus greatly reducing the cost of capturing the carbon dioxide for later utilization or sequestration.

After having successfully completed the Phase I feasibility study, Phase II is now focusing on component development and pilot-plant testing to validate the process and mature the technology for subsequent implementation in new coal plants and retrofits in existing plants. Development of the 1 MWth Oxy-PFBC pilot plant is being led by GTI in partnership with CanmetENERGY, Linde, EPRI, and Alstom with support from DOE/NETL and Alberta Innovates.

Learn more about the Oxy-fired Pressurized Fluidized Bed Combustor. (2.7MB pdf)​​​​​​​