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在微型反应器与红外分析联合装置上,考察了甲醇在 K—Y 分子筛上催化氧化过程的表面振荡行为。在消除了外界干扰因素的影响和在反应条件较大的范围内;温度200～680℃、氧醇比0.5～7.0、空速8000～70000h~(-1)测定了处于稳定条件时催化剂显示的表面热化学振荡;连续检测了反应产物——二氧化碳的浓度振荡;考察了温度、氧醇比、空速等条件对振荡行为的影响,并对多相催化过程所产生的化学振荡现象进行了初步讨论。
In the microreactor and infrared analysis unit, the surface oscillating behavior of methanol on K-Y zeolite was investigated. The influence of external disturbing factors and the reaction conditions were eliminated. The catalyst showed a stable condition at temperature of 200 ~ 680 ℃, oxygen and alcohol ratio of 0.5-7.0 and space velocity of 8000-70000 h ~ (-1) Surface thermochemical oscillation; continuous detection of the reaction product - the concentration of carbon dioxide oscillation; investigated the temperature, oxygen-to-oxygen ratio, space velocity and other conditions on the oscillation behavior, and the heterogeneity of the chemical reaction process oscillations were preliminary discuss.