アルミナ系沈でん触媒による窒素酸化物のアンモニア還元反応 (IV)
沈でんバナジウムーアルミナ触媒上でのNO-NH3反応に影響を与える操作因子
1977 年 56 巻 8 号 p. 666-673
詳細
1977 年 56 巻 8 号 p. 666-673
Operational factors affecting the abatement of nitric oxide in flue gases by ammonia on precipitated vanadium-alumina catalysts were studied. Oxygen in the gas phase accelerated NO conversion rate, and one mole of NO reacted with one mole of ammonia in the presence of oxygen. Sulfur dioxide and steam showed a little adverse effect on the reaction rate but still more than 99% conversion of NO was attained at 250°C under the practicable reaction condition. However, in the presence of sulfur dioxide, the catalyst support (alumina) reacted with ammonium bisulfate produced on the catalyst giving rise to a gradual decline of the catalytic activity.
