Partial Oxidation of Methane to Synthesis Gas over Hexaaluminates LaMAl_(11)O_(19-δ) catalysts

• 出 处: Journal of Natural Gas Chemistry
• 发表日期: 2007年01期
• 关键词: selectivity substituted methane Figure programmed gases downstream Profiles disa

A series of M-substituted hexaaluminates LaMAl11O19-δ(M=Fe, Co, Ni, Mn, and Cu) were prepared and characterized by XRD, XPS, TPR and TGA techniques, respectively. They exhibited different reducibility and catalytic activity for partial oxidation of methane (POM) to synthesis gas. Among the LaMAl11O19-δsamples, LaNiAl11O19-δshowed the best catalytic activity for the topic reaction and selectivity for synthesis gas at 780℃for 2 h. The conversion of CH4 was over 99.2%, and the product selectivity for both CO and H2 was above 90.3%.

A series of M-substituted hexaaluminates LaMAl11O19- δ (M = Fe, Co, Ni, Mn, and Cu) were prepared and characterized by XRD, XPS, TPR and TGA techniques, respectively. It exhibited different reducibility and catalytic activity for partial oxidation Among the LaMAl11O19-δsamples, LaNiAl11O19-δshowed the best catalytic activity for the topic reaction and selectivity for synthesis gas at 780 ° C for 2 h. The conversion of CH4 was over 99.2%, and the product The selectivity for both CO and H2 was above 90.3%.