Kinetics of dibenzothiophene hydrodesulfurization over MoS2 supported catalysts:: modelization of the H2S partial pressure effect

被引：0
|
作者：
Orozco, EO [1 ]
Vrinat, M [1 ]
机构：
[1] Inst Rech Catalyse, F-69626 Villeurbanne, France
来源：
APPLIED CATALYSIS A-GENERAL | 1998年 / 170卷 / 02期
关键词：
hydrodesulfurization; dibenzothiophene; kinetic; alumina; titania; zirconia;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The influence of H2S partial pressure over the catalytic activity of MoS2, supported on three different oxides: Al2O3, TiO2 and ZrO2, was studied in the hydrodesulfurization of dibenzothiophene (DBT). A complex inhibiting effect is observed and two orders of reaction relative to H2S were determined: -1/2 and 0, as a function of H2S partial pressure. The experimental results are in good agreement with the kinetic models whereby the DBT transformation takes place through a dihydrogenated intermediate (DH-DBT). The associated mechanism considers that the heterolytic dissociative adsorption of H-2 and H2S occurs over an unsaturated Mo ion and over a stable sulfur ion. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：195 / 206
页数：12
相关论文
共 50 条
  • [1] Kinetics of dibenzothiophene hydrodesulfurization over MoS2 supported catalysts: Modelization of the H2S partial pressure effect
    Inst. de Recherches sur la Catalyse, 2, Av. Albert Einstein, 69626 Villeurbanne, Cédex, France
    Appl Catal A Gen, 2 (195-206):
  • [2] Dibenzothiophene hydrodesulfurization over synthesized MOS2 catalysts
    Farag, H
    Sakanishi, K
    Kouzu, M
    Matsumura, A
    Sugimoto, Y
    Salto, I
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2003, 206 (1-2) : 399 - 408
  • [3] Investigation of the influence of H2S on hydrodesulfurization of dibenzothiophene over a bulk MoS2 catalyst
    Farag, H
    Sakanishi, K
    Kouzu, M
    Matsumura, A
    Sugimoto, Y
    Saito, I
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (02) : 306 - 310
  • [4] Hydrodesulfurization of dibenzothiophene over synthesized nanosized molybdenum disulfide: Effect of H2S partial pressure
    Farag, Hamdy
    Kishida, Masahiro
    Mochida, Isao
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2009, 238
  • [5] New insights on the role of H2S and sulfur vacancies on dibenzothiophene hydrodesulfurization over MoS2 edges
    Sharifvaghefi, Seyyedmajid
    Yang, Bo
    Zheng, Ying
    APPLIED CATALYSIS A-GENERAL, 2018, 566 : 164 - 173
  • [6] Hydrodesulfurization of dibenzothiophene over exfoliated MoS2 catalyst
    Tye, Ching Thian
    Smith, Kevin J.
    CATALYSIS TODAY, 2006, 116 (04) : 461 - 468
  • [7] Effect of stacking of MoS2 slabs on catalytic performance of supported CoMo-catalysts in hydrodesulfurization of dibenzothiophene
    Zepeda, T. A.
    Pawelec, B.
    Olivas, A.
    Fierro, J. L. G.
    MATERIALS RESEARCH INNOVATIONS, 2007, 11 (01) : 54 - 59
  • [8] Dibenzothiophene hydrodesulfurization over bulk unpromoted and cobalt promoted MoS2 catalysts.
    Farag, H
    Sakanishi, K
    Kouzu, M
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2003, 226 : U529 - U529
  • [9] Catalytic activity of synthesized nanosized molybdenum disulfide for the hydrodesulfurization of dibenzothiophene: Effect of H2S partial pressure
    Farag, Hamdy
    El-Hendawy, Abdel-Nasser A.
    Sakanishi, Kinya
    Kishida, Masahiro
    Mochida, Isao
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 91 (1-2) : 189 - 197
  • [10] A comparative assessment of the effect of H2S on hydrodesulfurization of dibenzothiophene over nanosize MoS2- and CoMo-based Al2O3 catalysts
    Farag, Hamdy
    APPLIED CATALYSIS A-GENERAL, 2007, 331 : 51 - 59
12345