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针对甲烷-二氧化碳重整用Ni基催化剂易于高温积碳失活问题,系统总结了重整催化剂的抗积碳性能的影响因素,分析了载体的载氧性、表面酸碱性和载体孔道结构与抗积碳性之间的关系,探讨了助剂改性催化剂表面酸碱性、金属与载体相互作用和活性组分的分散度对抗积碳性的影响,揭示了特殊场物理技术改性的催化剂表面活性组分Ni粒子尺寸和分散度与催化剂抗积碳性之间的关联度,阐释了Ni基催化剂积碳的原因,提出了改善重整催化剂的抗积碳性的具体方法和措施,并展望了强抗积碳的重整催化剂的发展趋势。
Aiming at the problem that the Ni-based catalyst for methane-carbon dioxide reforming is easy to deactivate high-temperature carbon deposition, the influencing factors on the carbon deposition resistance of the reforming catalyst are systematically summarized. The oxygen carrying capacity, surface acidity and basicity, The relationship between the surface area and the resistance to carbon deposition was discussed. The influence of the surface acid-base, the interaction between the metal and the support and the dispersion of the active component on the carbon deposition was discussed. The catalysts modified by special field physics The relationship between Ni particle size and dispersity of surface active component and the anti-carbon deposition of the catalyst was discussed. The reasons for the carbon deposition on the Ni-based catalyst were explained. The specific methods and measures to improve the carbon deposition resistance of the reforming catalyst were proposed. The development trend of reforming catalyst with strong anti-carbon deposition is prospected.