Compressive Strength Evaluation of SCR Catalyst Recycled Al-Dross

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).