物理化学学报 >> 2016, Vol. 32 >> Issue (11): 2776-2784.doi: 10.3866/PKU.WHXB201608302

论文 上一篇    下一篇

Y2O3修饰Ni/SiO2催化剂在甲烷部分氧化制合成气反应中的催化性能及稳定性

王雅莉,李琪,翁维正,夏文生*(),万惠霖*()   

  • 收稿日期:2016-06-13 发布日期:2016-11-08
  • 通讯作者: 夏文生,万惠霖 E-mail:wsxia@xmu.edu.cn;hlwan@xmu.edu.cn
  • 基金资助:
    国家自然科学基金(21373169);教育部创新团队项目(IRT1036)

Catalytic Behaviors and Stability of Y2O3-Modified Ni/SiO2 for Partial Oxidation of Methane into Synthesis Gas

Ya-Li WANG,Qi LI,Wei-Zheng WENG,Wen-Sheng XIA*(),Hui-Lin WAN*()   

  • Received:2016-06-13 Published:2016-11-08
  • Contact: Wen-Sheng XIA,Hui-Lin WAN E-mail:wsxia@xmu.edu.cn;hlwan@xmu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21373169);PCSIRT(IRT1036)

摘要:

采用常规浸渍法制备Y2O3修饰的Ni/SiO2催化剂,并考察其催化甲烷部分氧化(POM)制合成气反应性能。结果表明,Y2O3的引入减小了金属Ni的粒径,有效提高了Ni在载体表面的分散性,增强了金属Ni与载体SiO2间的相互作用,从而使催化剂的抗烧结、抗积碳能力,以及催化剂的POM反应性能得以改善。

关键词: 甲烷部分氧化, Ni, SiO2, Y2O3, 稳定性

Abstract:

Aseries of Y2O3-modified Ni/SiO2 catalysts were synthesized by a conventional impregnation method. Catalytic performances for the partial oxidation of methane (POM) to synthesis gas were investigated. The addition of Y2O3 promotes a decrease in size of Ni particles supported on silica, increased the dispersion of Ni particles, and enhanced the interaction between Ni and silica. These properties gave the catalysts increased anti-sintering and resistance to carbon deposits. The catalytic behaviors of the Ni-based catalysts for POM were significantly improved when Y2O3 was introduced.

Key words: Partial oxidation of methane, Ni, SiO2, Y2O3, Stability

MSC2000: 

  • O643