La and Mn Promotion of Ni/Al2O3 Catalysts for Syngas Methanation

被引：18
|
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
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2014年 / 36卷 / 10期
关键词：
syngas methanation; nickel catalysts; Mn promotion; La promotion; synergism effect; DECOMPOSITION; OXIDE; GAS;
D O I：
10.1080/15567036.2012.666621
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
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.
引用
收藏
页码：1049 / 1056
页数：8
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