文献类型：期刊文献

英文题名：La and Mn Promotion of Ni/Al2O3 Catalysts for Syngas Methanation

作者：Zhao, A.[1];Ying, W.[1];Zhang, H.[1];Ma, H.[1];Fang, D.[1]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2014

卷号：36

期号：10

起止页码：1049

外文期刊名：ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

收录：;EI(收录号：20141417542911);WOS:【SCI-EXPANDED(收录号:WOS:000333878200002)】；

基金：This work was supported by the National Science and Technology Supporting Plan of China (2006BAE02B02).

语种：英文

外文关键词：syngas methanation; nickel catalysts; Mn promotion; La promotion; synergism effect

摘要：24Ni-2La, 24Ni-2Mn, and 24Ni-2La-2Mn catalysts were prepared by co-impregnation method for syngas methanation, and were characterized by N-2 adsorption-desorption, XRD, H-2-TPR, and TEM. The addition of La and/or Mn as promoters can decrease the crystal size of Ni particles and prevent the growth of Ni particles during calcination and reduction. 24Ni-2La, 24Ni-2Mn, and 24Ni-2La-2Mn have similar average Ni particle size, which is in the range of 12.8-13.2 nm. For syngas methanation, 24Ni-2La presents a better synergism effect than both 24Ni-2Mn and 24Ni-2La-2Mn.