| 초록 |
The catalytic simultaneous decomposition of N2O and NO with the introduction of CO has been performed over Ni-K oxide catalyst. The catalysts were obtained by co-precipitation of nickel and potassium nitrates with the addition of the precipitants under controlled pH followed by calcinations. The conversion efficiencies of N2O and NO appeared excellent showing almost complete conversion even at around 200℃ in the presence of CO, which are compatible with those of Co-Pd-Al oxide catalyst having shown excellent activity when CO exists in excess of N2O and NO. The reactions were carried out under atmospheric pressure in the temperature range of 150-500°C and space velocities were set between 15,000 and 100,000/h. The K-incorporation in the manufacturing process of hydrotalcite-type compound represents prominent performances in the N2O destruction, leading to great economies in the catalyst manufacturing and operation costs. |
