Competition between gas and surface reactions in the oxidative coupling of methane 2. Isothermal experiments in a catalytic jet-stirred gas phase reactor
- 作者：Cô ; me ; Guy-Marie ; Yongdan ; Li ; Barbe ; Pascal ; Gueritey ; Nicolas ; Marquaire ; Paul-Marie ; et. al.
- 关键词：Methane coupling ; Catalytic jet-stirred reactor ; La2O3 catalyst ; Hetero-homogeneous reaction mechanisms
- 刊名：Catalysis Today
- 出版年：1996
- 期刊代码：13_09205861
- 类别：ce
- 出版时间：June 17, 1996
- 卷：30
- 期：1-3
- 页码：215-222
- 文件大小：450 K
摘要
The oxidative coupling of methane over a La2O3 catalyst was investigated by means of a continuous flow reactor with a perfectly mixed gas phase and a variable number of catalyst pellets. Experiments were carried out isothermally, i.e. at the same temperature for the gas phase and the catalyst, under the following conditions: total pressure equal to 1.05 bar, inlet mixture CH4:O2:He = 13.9:2.8:83.3 (mol), temperatures from 650 to 950°C, gas space times ranging from 0.6 to 6 s and pseudo catalytic contact times from 0 to 60 mg s cm−3. Complementary experiments were performed on carbon monoxide oxidation.