Gas phase catalytic partial oxidation of toluene in a microchannel reactor

被引:32
|
作者
Ge, H
Chen, GW
Yuan, Q
Li, HQ
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
基金
中国国家自然科学基金;
关键词
toluene; heterogeneous catalytic reaction; selective oxidation; microreactor; V/Ti oxide catalysts;
D O I
10.1016/j.cattod.2005.09.006
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Gas phase partial oxidation of toluene over V/Ti oxide catalysts has been successfully performed in a microchannel reactor, which provides very good mass and heat transfer conditions. With the elimination of hot spots, which are known as the most negative factors for partial oxidation of hydrocarbons, steady and uniform reaction conditions can be achieved in the catalyst bed by using, the microreactor. Since the best performance of the catalysts might be exploited, the selectivity of partial oxidation products of toluene has remarkably increased compared to the traditional packed fixed-bed reactor, even without the bother of modifying the catalysts, diluting the reactants or catalysts with inert contents to avoid hot spots or improve the diffusion and mixing. Furthermore, in virtue of its inherent safety features, when using pure oxygen as oxidant, the reactions were handled safety within the explosion limits in the microreactor. With TiO2 carried V2O5 as catalysts, the total selectivity of benzaldehyde and benzoic acid reaches around 60%, and the toluene conversion is about 10%. The conversion can go up without violent decline of selectivity, unlike most fixed bed reactors. Space time yield of 3.12 kg h(-1) L-1 calculated on the basis of the channel volume has been achieved. The influence of operating conditions has been investigated in detail in the microreactor. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:171 / 178
页数:8
相关论文
共 50 条
  • [41] Combination of photocatalysis downstream the non-thermal plasma reactor for oxidation of gas-phase toluene
    Huang, Haibao
    Ye, Daiqi
    JOURNAL OF HAZARDOUS MATERIALS, 2009, 171 (1-3) : 535 - 541
  • [42] CATALYTIC PARTIAL OXIDATION OF NATURAL GAS IN GAS TURBINE APPLICATIONS
    Carrera, Arturo Manrique
    Jayasuriya, Jeevan
    Fransson, Torsten
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2013, VOL 1B, 2013,
  • [43] GENTLE GAS PHASE OXIDATION .2. TOLUENE
    JULLIEN, MJ
    MINKEVIT.L
    BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE, 1967, (05): : 1801 - &
  • [44] GAS-PHASE COUPLING OF METHYL RADICALS DURING THE CATALYTIC PARTIAL OXIDATION OF METHANE
    CAMPBELL, KD
    MORALES, E
    LUNSFORD, JH
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (25) : 7900 - 7901
  • [45] Catalytic partial oxidation of cyclohexane in a single-gauze reactor
    O'Connor, RP
    Schmidt, LD
    JOURNAL OF CATALYSIS, 2000, 191 (01) : 245 - 256
  • [46] Catalytic partial oxidation of gasoline to syngas in a dense membrane reactor
    Zhu, WL
    Xiong, GX
    Han, W
    Yang, WS
    CATALYSIS TODAY, 2004, 93-5 : 257 - 261
  • [47] Partial oxidation of methane in an adiabatic-type catalytic reactor
    Al-Musa, A.
    Shabunya, S.
    Martynenko, V.
    Al-Mayman, S.
    Kalinin, V.
    Al-Juhani, M.
    Al-Enazy, K.
    JOURNAL OF POWER SOURCES, 2014, 246 : 473 - 481
  • [48] Temperature dependence of catalytic cyclohexane partial oxidation in a polytetrafluoroethylene reactor
    D. Lončarević
    J. Krstić
    P. Banković
    S. Anić
    Ž Čupić
    Russian Journal of Physical Chemistry A, 2007, 81 : 1398 - 1401
  • [49] Temperature dependence of catalytic cyclohexane partial oxidation in a polytetrafluoroethylene reactor
    Loncarevic, D.
    Krstic, J.
    Bankovic, P.
    Anic, S.
    Cupic, Z.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 81 (09) : 1398 - 1401
  • [50] Catalytic Synthesis of Triethanolamine in a Microchannel Reactor
    Andreev, D., V
    Sergeev, E. E.
    Makarshin, L. L.
    Ivanov, E. A.
    Gribovskii, A. G.
    Adonin, N. Yu
    Pai, Z. P.
    Parmon, V. N.
    CATALYSIS IN INDUSTRY, 2019, 11 (01) : 45 - 52