Development and testing of catalytic filters for partial oxidation of methane to increase hydrogen production in a biomass gasification process constitute the subject of the present study. Nickel, iron and lanthanum were coated on calcium silicate filters via co-impregnation technique, and catalytic filters were characterized by ICP-MS, XPS, XRD, TEM, TGA, TPR and BET techniques. The influences of varying reaction temperature and addition of Fe or La to Ni-based catalytic filters on methane conversion, and hydrogen selectivity have been investigated in view of preliminary results obtained from reactions with 6% methane-nitrogen mixture, and catalytic filters were tested with model biogas mixtures at optimum reaction temperature of each filter which were 750 °C or 850 °C. Approximately 93% methane conversion was observed with nearly 6% methane-nitrogen mixture, and 97.5% methane conversion was obtained with model biogas containing CH₄ which is 6%, CO₂, CO, and N₂ at 750 °C. These results indicate that calcium silicate provides a suitable base material for catalytic filters for partial oxidation of methane and biogas containing methane.

研发和测试用于部分氧化甲烷以增加生物质气化过程中氢气产生量的催化过滤器，是本研究的主题。通过共浸渍技术将镍，铁和镧涂覆在硅酸钙过滤器上，并通过ICP-MS，XPS，XRD，TEM，TGA，TPR和BET技术对催化过滤器进行表征。鉴于从与6％甲烷-氮气混合物的反应中获得的初步结果，研究了变化的反应温度以及向Ni基催化过滤器中添加Fe或La对甲烷转化率和氢选择性的影响，并对催化过滤器进行了测试。在每个过滤器的最佳反应温度为750°C或850°C时对沼气混合物进行建模。₄在750°C时为6％，CO ₂，CO和N ₂。这些结果表明，硅酸钙为催化过滤器提供了合适的基础材料，以用于甲烷和含甲烷沼气的部分氧化。