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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium REWAS 2016
Presentation Title Energy Generation from Waste Slags: Beyond Heat Recovery
Author(s) , James Bennett, Anna Nakano
On-Site Speaker (Planned)
Abstract Scope Metallurgical and gasification processes utilize carbon feedstock such as coal and petroleum coke in production of metal, power, and/or chemicals; but also generate large quantities of gas (high in CO2) and slag as by-products. During processing, slag forms as molten agglomerates from non-volatile components in feedstock, additives, and/or metal ores’ impurities. In this study, waste metallurgical and gasification slags were mixed at a specific ratio in the presence of industrial process waste CO2, resulting in a reaction generating energy – enough to convert CO2 to CO which can be used in other processes such as ore reduction, gas turbine power generation, and synthetic fuel production. A series of computational simulations suggest that the generation of H2 from H2O would also be possible using a similar mixed slag approach. Energy generated is expected to remain largely in excess after conversion. Slag would result in approximately 70% volume reduction, decreasing landfill burden.
Proceedings Inclusion? Planned: A CD-only volume


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