Effect of high-temperature treatment of on the activity of Ru-Cs(Ba)/Sibunit catalysts in ammonia synthesis and their resistance to methanation

被引：10
|
作者：
Borisov, Vadim A. [1 ,2 ]
Iost, Kristina N. [1 ]
Temerev, Victor L. [1 ]
Fedotova, Polina A. [2 ]
Surovikin, Yuriy, V [1 ,2 ]
Arbuzov, A. B. [1 ]
Trenikhin, M., V [1 ,2 ]
Shlyapin, Dmitry A. [1 ]
机构：
[1] SB RAS, Ctr New Chem Technol BIC, Boreskov Inst Catalysis, 54 Neftezavodskaya St, Omsk 644040, Russia
[2] Omsk State Tech Univ, 11 Mira Ave, Omsk 644050, Russia
来源：
DIAMOND AND RELATED MATERIALS | 2020年 / 108卷
基金：
俄罗斯科学基金会;
关键词：
Ru-Ba(Cs)/C catalysts for ammonia synthesis; Activity; Resistance to methanation; Sibunit; SUPPORTED RUTHENIUM CATALYSTS; CARBON SUPPORT; RU/C CATALYSTS; NH3; SYNTHESIS; PROMOTERS; GRAPHITE; BARIUM; CESIUM; GRAPHITIZATION; DECOMPOSITION;
D O I：
10.1016/j.diamond.2020.107986
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ru-Cs(Ba)/Sibunit catalysts with the molar ratio Cs(Ba):Ru = 2.5 were synthesized using the carbon composite Sibunit calcined at 1400, 1600, 1800, 2000 and 2200 degrees C. Activity of the promoted catalysts in ammonia synthesis and their thermal stability to methanation were compared. Substantial changes in the structure and properties of Sibunit during its calcination were shown to affect the activity of the synthesized catalysts. As the calcination temperature was raised, specific surface (S-sp) decreased considerably, the carbon structure became ordered, whereas the specific activity (W-sp) increased. Thus, Wsp at 400 degrees C for Cs-Ru/Sib1400 was equal to 0.107 mol NH3.gRu(-1).h(-1), while for Cs-Ru/Sib2200 - 0.591 mol NH3.gRu(-1).h(-1). It was found that elevation of the calcination temperature and introduction of barium significantly enhanced thermal stability of the samples - the carbon loss decreased up to 10 times.
引用
收藏
页数：11
相关论文
共 50 条
  • [1] The Influence of High-Temperature Treatment of the Carbon Support Sibunit and the Content of Ruthenium on the Activity of Ru-Cs/C Catalysts for Ammonia Synthesis
    Borisov, V. A.
    Fedotova, P. A.
    Iost, K. N.
    Temerev, V. L.
    Surovikin, Y., V
    Arbuzov, A. B.
    Trenikhin, M., V
    Shlyapin, D. A.
    OIL AND GAS ENGINEERING (OGE-2020), 2020, 2285
  • [2] An XPS study of the promotion of Ru-Cs/Sibunit catalysts for ammonia synthesis
    Larichev, YV
    Prosvirin, IP
    Shlyapin, DA
    Shitova, NB
    Tsyrul'nikov, PG
    Bukhtiyarov, VI
    KINETICS AND CATALYSIS, 2005, 46 (04) : 597 - 602
  • [3] An XPS Study of the Promotion of Ru-Cs/Sibunit Catalysts for Ammonia Synthesis
    Yu. V. Larichev
    I. P. Prosvirin
    D. A. Shlyapin
    N. B. Shitova
    P. G. Tsyrul’nikov
    V. I. Bukhtiyarov
    Kinetics and Catalysis, 2005, 46 : 597 - 602
  • [4] Synthesis and study of Ru–Ba–Cs/Sibunit ternary catalysts for ammonia synthesis
    K. N. Iost
    V. L. Temerev
    N. S. Smirnova
    D. A. Shlyapin
    V. A. Borisov
    I. V. Muromtsev
    M. V. Trenikhin
    T. V. Kireeva
    A. V. Shilova
    P. G. Tsyrul’nikov
    Russian Journal of Applied Chemistry, 2017, 90 : 887 - 894
  • [5] Resistance for Methanation and Activity in Ammonia Decomposition Catalysts Ru-Rb/Sibunit
    Iost, K. N.
    Borisov, V. A.
    Smirnova, N. S.
    Temerev, V. L.
    Surovikin, Yu, V
    Shlyapin, D. A.
    Tsyrulnikov, P. G.
    21ST CENTURY: CHEMISTRY TO LIFE, 2019, 2143
  • [6] Erratum to: “Synthesis and study of Ru–Ba–Cs/Sibunit ternary catalysts for ammonia synthesis”
    K. N. Iost
    V. L. Temerev
    N. S. Smirnova
    D. A. Shlyapin
    V. A. Borisov
    I. V. Muromtsev
    M. V. Trenikhin
    T. V. Kireeva
    A. V. Shilova
    P. G. Tsyrul’nikov
    Russian Journal of Applied Chemistry, 2018, 91 : 882 - 882
  • [7] Synthesis and Study of Ru-Ba-Cs/Sibunit Ternary Catalysts for Ammonia Synthesis
    Iost, K. N.
    Temerev, V. L.
    Smirnova, N. S.
    Shlyapin, D. A.
    Borisov, V. A.
    Muromtsev, I. V.
    Trenikhin, M. V.
    Kireeva, T. V.
    Shilova, A. V.
    Tsyrul'nikov, P. G.
    RUSSIAN JOURNAL OF APPLIED CHEMISTRY, 2017, 90 (06) : 887 - 894
  • [8] The effect of composition of the ruthenium precursors and heat treatment conditions on the activity of Ru-Ba/Sibunit catalysts for ammonia synthesis
    Smirnova, N. S.
    Iost, K. N.
    Temerev, V. L.
    Gulyaeva, T. I.
    Trenikhin, M. V.
    Muromtsev, I. V.
    Khramov, E. V.
    Zubavichus, Y. V.
    Shlyapin, D. A.
    Tsyrul'nikov, P. G.
    MOLECULAR CATALYSIS, 2017, 433 : 235 - 241
  • [9] Synthesis and study of Ru-Ba-Cs/Sibunit ternary catalysts for ammonia synthesis (vol 90, pg 887, 2017)
    Iost, K. N.
    Temerev, V. L.
    Smirnova, N. S.
    Shlyapin, D. A.
    Borisov, V. A.
    Muromtsev, I. V.
    Trenikhin, M. V.
    Kireeva, T. V.
    Shilova, A. V.
    Tsyrul'nikov, P. G.
    RUSSIAN JOURNAL OF APPLIED CHEMISTRY, 2018, 91 (05) : 882 - 882
  • [10] High-Temperature Modification of Sibunit for its Application as a Support for Ruthenium Catalysts in Ammonia Synthesis
    Borisov, V. A.
    Iost, K. N.
    Temerev, V. L.
    Surovikin, Y. V.
    Smorokov, A. A.
    Fedotova, P. A.
    Shlyapin, D. A.
    OIL AND GAS ENGINEERING (OGE-2019), 2019, 2141
12345