【摘要】 利用常压微型固定床反应器,采用CuZnZrA lO甲醇重整制氢催化剂,考察了503~543K下甲醇停留时间(W/FA0)对CO2和CO转化率的影响,在排除内外扩散影响的条件下,采用甲醇直接重整和甲醇分解平行进行的反应途径,以CO和CO2为关键组分,建立了适合其在甲醇蒸汽重整制氢反应中使用的动力学模型,并利用最小二乘法确定了模型参数.F-检验表明所提出的动力学模型可作为反应器模拟分析和设计的基础.更多还原

【Abstract】 The methanol steam reforming was performed using a micro fixed-bed reactor at atmospheric pressure,with CuZnZrAlO as the catalyst, and the effects of pseudo residence time W/FA0 on the conversions of methanol to outlet CO and CO2 were investigated at 503～543 K.By carrying out the direct methanol reforming and the methanol decomposition in parallel,a kinetic model suitable for the parallel reaction route was then established on the condition that the effects of internal and external diffusing were eliminated, with the outlet CO and CO2 as the two key indexes.Moreover,the corresponding model parameters were determined by means of the least square method.The F-test demonstrates that the proposed kinetic model is suitable for the simulation and design of the reactor for methanol steam reforming.更多还原