|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Aluminum Reduction Technology
||Development, Proof of Concept and Industrial Pilote of the New CHAC Scrubbing Technology : An Innovative Efficient Way to Scrub Sulfur Dioxide
||Jean-Nicolas Maltais, Cyril Gaudreault, Jonathan Bernier, Simon Leclerc, Josette Ross
|On-Site Speaker (Planned)
Reducing sulfur dioxide emissions can be a solution to respect different stakeholder expectations, when considering production growth, raw materials changes and/or more stringent environmental regulations.
If scrubbing is the selected solution, technologies available today require large equipment to handle and recycle the reactant, and multi-steps treatment of a hardly recoverable by-product, resulting in high costs.
From 2011 to 2014, Rio Tinto Alcan R&D environmental technologies team has developed the new promising CHAC (Aqua-catalysed chalked lime, patent pending) scrubbing process. Trials in a small scale pilote scrubber, laboratory works and full scale proof of concept in existing plant, confirmed the viability of that new technology. This led to the implementation of an industrial pilote at the coke calciner of the Arvida smelter in 2015, to validate the full potential of the CHAC process. The operational and environmental performances have been evaluated and confirm the advantages and limitations.
||Planned: Light Metals Volume