The Effect of Active Metals Cu - Fe in Alumina Catalytic Converters on Motor Vehicle Exhaust Emissions
DOI:
https://doi.org/10.70822/evrmata.vi.117Keywords:
Cu–Fe active metals, alumina-based catalytic converter, exhaust emissions, CO emission reduction, HC emission reduction, CO₂ and O₂ levelsAbstract
This study addresses the growing environmental concerns caused by motor vehicle emissions, particularly CO, HC, CO₂, and O₂, which contribute to urban air pollution. The goal is to evaluate the effect of Cu–Fe active metals in alumina-based catalytic converters on exhaust gas emissions from a 110cc gasoline motorcycle. The method involves preparing Cu–Fe/Al₂O₃ catalysts in varying compositions (80%, 70%, and 60% alumina with Cu–Fe) and testing them in a modified exhaust system at different engine RPMs (idle, 3000 RPM, and 6000 RPM). The results show significant reductions in CO and HC emissions across all RPM levels, with the 60% alumina – 40% Cu–Fe composition performing the best, especially at higher RPMs where oxidation reactions are most effective. The increase in CO₂ levels and decrease in O₂ further confirmed the improved oxidation process. Specifically, CO emissions were reduced by 30%, HC by 25%, while CO₂ levels increased by 15%. In conclusion, Cu–Fe/Al₂O₃ catalytic converters provide a cost-effective and efficient alternative to precious metal-based catalysts, with potential applications in reducing vehicle emissions without major cost increases.
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