Integrating Steel Production with Mineral Carbon Sequestration

Lackner, Klaus ; Doby, Paul ; Yegulalp, Tuncel ; Krevor, Samuel ; Graves, Christopher

Columbia University, Department of Earth and Environmental Engineering, New York, NY

关键词: Puerto Rico;    Storage;    Capacity;    Metal Industry;    Computers;   

DOI  :  10.2172/938528
RP-ID  :  None
RP-ID  :  FC36-97ID13554
RP-ID  :  938528

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objectives of the project were (i) to develop a combination iron oxide production and carbon sequestration plant that will use serpentine ores as the source of iron and the extraction tailings as the storage element for CO2 disposal, (ii) the identification of locations within the US where this process may be implemented and (iii) to create a standardized process to characterize the serpentine deposits in terms of carbon disposal capacity and iron and steel production capacity. The first objective was not accomplished. The research failed to identify a technique to accelerate direct aqueous mineral carbonation, the limiting step in the integration of steel production and carbon sequestration. Objective (ii) was accomplished. It was found that the sequestration potential of the ultramafic resource surfaces in the US and Puerto Rico is approximately 4,647 Gt of CO2 or over 500 years of current US production of CO2. Lastly, a computer model was developed to investigate the impact of various system parameters (recoveries and efficiencies and capacities of different system components) and serpentinite quality as well as incorporation of CO2 from sources outside the steel industry.