摘要
分析了甲醇重整制氢反应可能的反应途径。分析结果表明体系中有 2个独立反应 ,则至少应有 2个动力学方程才能描述。利用平衡温距的概念 ,分析了WGS反应在甲醇水重整反应体系中的作用 ,根据在固定床反应器上的实验结果 ,证明变换反应不宜出现在动力学模型中。合理的动力学模型认为水蒸气重整反应和甲醇分解反应平行进行 ,CO和CO2 同时生成。
Different routes of methanol-steam reforming over ZnO-Cr_2O_3 catalyst have been discussed There are two [CM(46]independent reactions with five components and three elements in this process Using the parameter defined as the [CM(46]difference between the real temperature and pseudo thermodynamic equilibrium temperature based on the value of P_ COP_ H_2O/P_ CO_2P_ H_2 in the outflow, our calculations of experimental data showed that neither the water-gas shift reaction nor its reverse reaction is proper to appear in the kinetic model The reasonable model may be represented by parallel reaction model, taking SRM and DE as the independent reactions Therefore the two components of CO and CO_2 are produced simultaneously
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2001年第2期174-176,共3页
Journal of Fuel Chemistry and Technology
基金
国家重点基础研究专项经费资助! (G2 0 0 0 0 2 64 0 1)&&
关键词
动力学
水蒸气重整
甲醇
氢源
燃料电池
氢气
电动汽车
kinetics
steam reforming
methanol
H_2 source
proton exchange membrane fuel cell
