摘要
本文报导在CaO-Li-CeO_2催化剂上甲烷氧化偶联反应的宏观动力学。在893-973K温度范围内测出了甲烷氧化偶联反应产物的生成速度及其对甲烷及氧分压的反应级数。根据这些数据计算出了甲烷转化和相应产物生成的表观活化能E。在此基础上对反应机理进行了初步探讨。
In this paper kinetics of the oxidative coupling of methane over CaO-Li-CeO_2 catalysts is reported.The rates of formation of products from methane coupling and reaction orders with respect to oxygen and methane partial pressures were measured. The corresponding kinetic rate equations of ethylene and ethane formation are given. Activation energies of methane conversion and of products formation were determined. Based on the experimental data a possible mechanism was assumed. The experimentally measured kinetic orders were in good agreement with the theoritical model.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1989年第4期309-315,共7页
Journal of Fuel Chemistry and Technology
关键词
甲烷
氧化偶联
动力学
钙锂布
mathane
kinetics
oxidative coupling reaction
