含肼废气的催化氧化作用研究

研究了以稀土与贱金属的复合氧化物为催化剂,对含肼废气的催化氧化作用。考察了废气中的肼浓度、空间速度、环境温度、氧浓度等因素对含肼废气净化效果的影响及这种催化剂的使用寿命。由此得出结论:当空气中肼浓度为4000mg/m~3～5000mg/m~3,环境温度为14℃,空间速度为10000/h时,连续使用100h以上,其净化率始终保持在100％。此外,还对催化剂进行了多批量及多批次冷启动考核,都得到了满意的结果。

Research for Catalytic Oxidation of Waste Gas Containing Hydrazine

Using composite oxides of the Rare Earth and Cheap metals as catalyst,this paper studied the catalytic oxidation of waste gas containing hydrazine.The influence of hydrazine concentration in waste gas,space velocity,environmental temperature,oxygen concentration on the purification efficiency was discussed.The usefull life of the catalyst was also investigated.When the hydrazine concentration in air is 4000 ~ 5 000 mg/L,environmental temperature is 14℃,space velocity is 10000/h,the purification efficiency keeps 100% for more than 100h.The quantity experiment and cold operation investigation both give satisfied results.