微波场中Co/La_2O_3催化甲烷部分氧化制合成气

Catalytic Activity of Co/La 2O 3 for Partial Oxidation of Methane to Syngas in Microwave Field

近年来，对甲烷部分氧化制合成气（ＰＯＭ）的研究，一直十分活跃［１～８］．该反应常用的催化剂是负载型贵金属（Ｒｈ）和过渡金属（Ｎｉ和Ｃｏ）．由于贵金属的价格昂贵，因而Ｎｉ和Ｃｏ受到人们的极大重视，但Ｎｉ和Ｃｏ在反应温度较高时，易发生催化剂的挥发流失和烧...

The temperature rising behavior of Co/La 2O 3 catalysts with different Co contents and the activity of 10%Co/La 2O 3 catalyst for CH 4 partial oxidation to syngas under microwave irradiation have been studied. The higher content of Co in Co/La 2O 3, the higher temperature can be reached under microwave irradiation. Compared with the conventional heating, the temperature of the catalytic bed is much lower and higher selectivity to CO can be obtained with microwave irradiation, which could be attributed to the “microwave hot spot” effect.