摘要
采用MoO3 或CoMoOy 与N2 /H2 的程序升温还原反应 ,合成出了BET比表面积为 16 5m2 /g和 15 8m2 /g的Mo2 N和CoMoNx。用CO的加氢反应作为探针反应 ,并结合原位傅立叶变换红外光谱 (FT IR)技术评价了合成催化剂的加氢性能。结果表明 ,氮化钼催化剂具有较高的CO加氢活性和CH4 选择性 ,催化剂的预处理条件对其反应性能有明显的影响 ,钝化态的氮化钼经在 6
The production of molybdenum nitride and Co\|promoted molybdenum nitride has been obtained from the temperature\|programmed reduction of molybdenum oxides with the mixture of N\-2\|H 2 gases. The BET surface areas of moldybdenum nitride and Co\|promoted molybdenum nitride are 165 and 158 m 2/g respectively. The CO hydrogenation activity was measured by FT IR in\|situ method. It is shown high activity and selectivity of methane formation. The difference pretreatment condition has an effect on CO hydrogenation activity. The result indicates that the CO hydrogenation activities of pre\|reduced catalysts are lower than that of the passivated catalysts, namely pre\|reducation in hydrogen at 673 K couldn't improve the CO hydrogenation activity.
出处
《石油大学学报(自然科学版)》
CSCD
北大核心
2001年第3期62-64,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
重质油加工国家重点实验室资助项目
石油大学化学化工学院基础研究资助课题