Oxidative dehydrogenation of isobutane over magnesium molybdate catalysts

被引：0
作者：
Zhang, YJ
Rodríguez-Ramos, I
Guerrero-Ruiz, A
机构：
[1] CSIC, Inst Catalisis & Petroleoquim, Madrid 28049, Spain
[2] Univ Nacl Educ Distancia, Dept Quim Inorgan, Madrid 28040, Spain
来源：
CATALYSIS TODAY | 2000年 / 61卷 / 1-4期
关键词：
oxidative dehydrogenation; isobutane; magnesium molybdate catalysts;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A series of Mo-Mg-O catalysts with different crystalline phases (pure and mixtures) have been studied in the oxidative dehydrogenation of isobutane. X-ray diffraction, UV-Vis spectroscopy and temperature programmed reduction were applied to characterise the samples. In addition, the kinetics of the lattice oxygen exchange with labelled (CO2)-O-18 was measured for all samples. It has been found that the MgMoO4 phase contains the surface active sites suitable for the adsorption of isobutane and for its dehydrogenation to isobutene with the minimum of cracking reaction. Moreover, for this reaction the migration of lattice oxygen ions is not a key parameter in the control of the catalytic properties of these materials. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：377 / 382
页数：6
相关论文
共 15 条
  • [1] Surface structure of highly dispersed MoO3 on MgO using in situ Mo L3-edge XANES
    Bare, SR
    [J]. LANGMUIR, 1998, 14 (06) : 1500 - 1504
  • [2] Synergy effects in the oxidative dehydrogenation of propane over MgMoO4MoO3 catalysts
    Cadus, LE
    Gomez, MF
    Abello, MC
    [J]. CATALYSIS LETTERS, 1997, 43 (3-4) : 229 - 233
  • [3] Spillover controlled catalytic processes: from the atomic scale to macroscopic kinetics
    Delmon, B
    [J]. SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS, 1997, 112 : 1 - 12
  • [4] Study of surface and lattice oxygen atoms over magnesium vanadate phases by isotopic exchange with (CO2)-O-18
    GuerreroRuiz, A
    RodriguezRamos, I
    FerreiraAparicio, P
    Volta, JC
    [J]. CATALYSIS LETTERS, 1997, 45 (1-2) : 113 - 118
  • [5] Description of active sites on molybdenum oxide as detected by isotope exchange between (CO2)-O-18 and (MoO3)-O-16
    GuerreroRuiz, A
    RodriguezRamos, I
    FerreiraAparicio, P
    Abon, M
    Volta, JC
    [J]. CATALYSIS TODAY, 1996, 32 (1-4) : 223 - 227
  • [6] O-18 TRACER STUDIES OF CO OXIDATION WITH O2 ON MOO3 .2. ACTIVE-SITES FOR CO OXIDATION WITH O2 AND FOR OXYGEN-ISOTOPE EXCHANGE BETWEEN CO2 AND MOO3
    IIZUKA, Y
    TANIGAKI, H
    SANADA, M
    TSUNETOSHI, J
    YAMAUCHI, N
    ARAI, S
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (09): : 1307 - 1312
  • [7] ISOTOPE EXCHANGE OF O-18 OF CARBON DIOXIDE WITH OXYGEN IONS OF VANADIUM HEMIPENTOXIDE .1.
    KAKIOKA, H
    DUCARME, V
    TEICHNER, SJ
    [J]. JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1971, 68 (11-1) : 1715 - &
  • [8] An evidence of active surface MoOx over MgMoO4 for the catalytic oxidative dehydrogenation of propane
    Lee, KH
    Yoon, YS
    Ueda, W
    Morooka, Y
    [J]. CATALYSIS LETTERS, 1997, 46 (3-4) : 267 - 271
  • [9] UV CHARACTERIZATION OF OCTAHEDRALLY COORDINATED MO(VI) SUPPORTED ON SIO2 - THE EFFECT OF SURFACE HYDRATION
    MARCINKOWSKA, K
    RODRIGO, L
    KALIAGUINE, S
    ROBERGE, PC
    [J]. JOURNAL OF MOLECULAR CATALYSIS, 1985, 33 (02): : 189 - 200
  • [10] XAFS STUDY OF MOLYBDENUM OXIDE CATALYSTS ON VARIOUS SUPPORTS
    SHIMADA, H
    MATSUBAYASHI, N
    SATO, T
    YOSHIMURA, Y
    NISHIJIMA, A
    KOSUGI, N
    KURODA, H
    [J]. JOURNAL OF CATALYSIS, 1992, 138 (02) : 746 - 749
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