Synthesis and Study of Ru-Ba-Cs/Sibunit Ternary Catalysts for Ammonia Synthesis

被引：19
|
作者：
Iost, K. N. [1 ]
Temerev, V. L. [1 ]
Smirnova, N. S. [2 ]
Shlyapin, D. A. [1 ]
Borisov, V. A. [1 ,3 ]
Muromtsev, I. V. [1 ]
Trenikhin, M. V. [1 ]
Kireeva, T. V. [1 ]
Shilova, A. V. [1 ]
Tsyrul'nikov, P. G. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Hydrocarbon Proc, Neftezavodskaya Ul 54, Omsk 644040, Russia
[2] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Leninskii Pr 31, Moscow 119091, Russia
[3] Omsk State Tech Univ, Pr Mira 11, Omsk 644050, Russia
来源：
RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2017年 / 90卷 / 06期
关键词：
SUPPORTED RUTHENIUM CATALYST; CARBON SUPPORT; THERMAL-DECOMPOSITION; BARIUM PROMOTER; WORKING STATE; CS-RU/C; ACTIVATION; CESIUM; PERFORMANCE; METHANATION;
D O I：
10.1134/S1070427217060088
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Ru-Ba-Cs/Sibunit ternary catalysts were synthesized. Their activity in ammonia synthesis and the thermal stability of the support in a reducing atmosphere at elevated temperature depend on the molar ratio of the promoters. The results of studies using physical methods suggest that cesium predominantly interacts with the support, acting as an electronic promoter, whereas barium is a structural promoter. The synergistic action of the promoters at increased barium content of the catalyst was revealed. The highest activity in ammonia synthesis, 34.5 mL(NH3) g(cat)(-1) h(-1), was reached for the 4% Ru-10.8% Ba-2.6% Cs/Sibunit catalyst.
引用
收藏
页码：887 / 894
页数：8
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