Carbon Capture - www.ussteel.com
At our Edgar Thomson facility in Braddock, Pennsylvania, we are partnering with the U.S. Department of Energy (DOE) and GTI Energy in a demonstration project for ROTA-CAP™ carbon capture technology. ROTA-CAP™ is a process that combines a compact rotating packed bed with an advanced solvent to potentially achieve more than 95% capture of flue gases. ROTA-CAP™ could cost as little as half as much as conventional capture processes.
In another DOE partnership project at the Edgar Thomson plant, we are collaborating with the National Energy Technology Laboratory (NETL) to test a membrane-based carbon capture technology starting in 2025. Membrane-based carbon capture is simple compared to other carbon capture technologies and has the potential to reduce capital and maintenance costs.
For our Gary Works facility in Gary, Indiana, we are partnering with CarbonFree to capture and mineralize up to 50,000 metric tons of CO2 annually with the company’s SkyCycle™ technology. SkyCycle™ takes CO2 from a blast furnace and converts it into a pure form of limestone that can be used in products such as plastics, rubber and paints, adhesives, sealants and caulks. The project will be the first commercial-scale carbon capture utilization plant at a steel plant in North America. Photo at right: CarbonFree’s SkyCycle™ carbon capture technology.
We are working with Carnegie Mellon University on Scaling Hydrogen-Direct Reduced Iron Pathways to Decarbonize Iron and Steelmaking. The DOE will provide funding to Carnegie Mellon University (CMU) to increase the Technology Readiness Level of the hydrogen-based direct reduction of iron oxide (DRI) process. U. S. Steel will work with CMU to conduct reduction tests on iron oxide pellets and carry out characterization activities by optical, electron, and x-ray methods, as well as installing and testing a reactor for DRI conditions.
A U. S. Steel partnership with Molten Industries and the DOE will be piloting a new process that enlists methane pyrolysis to produce hydrogen for reducing iron ore, resulting in carbon-neutral steel production.
Through these DOE and CarbonFree partnerships, U. S. Steel is helping to shape the future of greenhouse gas reduction for the entire steel industry. They also represent a big step forward in our ambition to achieve net-zero by 2050.
