Compressive Strength Evaluation of SCR Catalyst Recycled Al-Dross

Abstract:

Aluminum dross is forms at the surface of the molten metal as the latter reacts with the furnace atmosphere and it was an unavoidable by-product of the aluminum production process. However, it has not been sufficiently recycled yet. Approximately 95% of the Al dross was land filled without innocent treatment. Therefore, Al-dross is positively necessary to recycling. The purpose of this study is to investigate the compressive strength of Selective Catalyst Reduction (SCR) prepares using recycled Al-dross and compared commercial SCR catalyst. Recycled Al-dross was as support material to increase strength. As to experimental procedures, Al dross was classified according to its size. The recycled Al dross was made into SCR catalyst by mixing with WO₃, V₂O₅, and TiO₂. After V₂O₅-WO₃-TiO₂-Al₂O₃ SCR strength was measured by Universal Testing Machine (UTM). And then NOx removal activity of V₂O₅-WO₃-TiO₂-Al₂O₃ SCR and commercial SCR catalyst were observed by MR(Micro-Reactor).

• Periodical: Materials Science Forum (Volume 724)
• Pages: 135-138
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.724.135
• Online since: June 2012
• Authors: Min A Bae, Hong Dae Kim, Kwang Ho Kim, Man Sig Lee
• Keywords: Al-Dross, Catalyst, De-NO_x, NO_x, SCR

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