Oxidative coupling of methane over Na-Mn-W/SiO2 catalyst at higher pressure

被引：0
|
作者：
Lingjun Chou
Yingchun Cai
Bing Zhang
Jianzhong Niu
Shengfu Ji
Shuben Li
机构：
[1] Lanzhou Institute of Chemical Physics,State Key Laboratory for Oxo Synthesis and Selective Oxidation
[2] Chinese Academy of Sciences,undefined
来源：
Reaction Kinetics and Catalysis Letters | 2002年 / 76卷
关键词：
OCM; effect of pressure; Na-W-Mn/SiO; catalyst;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Na-Mn-W/SiO2 catalysts were prepared and their catalytic performance for oxidative coupling of methane (OCM) was evaluated in a stainless-steel microreactor at elevated pressure. The results show that a CH4 conversion of 15.1% with a C2+ selectivity of 71.8% was obtained under 750oC, 1.0×105h-1 GHSV, CH4/O2 ratio of 8 and 1.0 MPa. Moreover, 17.3% CH4 conversion with 51.6% C2 selectivity and 23.6% C3-C4 selectivity was obtained under 750oC, 2.0×105h-1 GHSV, CH4/O2 ratio of 8 and 1.0 MPa.
引用
收藏
页码：311 / 315
页数：4
相关论文
共 50 条
  • [31] Effect of reaction conditions on the oxidative coupling of methane over doped MnOx-Na2WO4/SiO2 catalyst
    Hayek, Naseem S.
    Khlief, Grace J.
    Horani, Faris
    Gazit, Oz M.
    JOURNAL OF CATALYSIS, 2019, 376 : 25 - 31
  • [32] Investigation of the role of the Na2WO4/Mn/SiO2 catalyst composition in the oxidative coupling of methane by chemical looping experiments
    Fleischer, Vinzenz
    Simon, Ulla
    Parishan, Samira
    Colmenares, Maria Gracia
    Goerke, Oliver
    Gurlo, Aleksander
    Riedel, Wiebke
    Thum, Lukas
    Schmidt, Johannes
    Risse, Thomas
    Dinse, Klaus-Peter
    Schomaecker, Reinhard
    JOURNAL OF CATALYSIS, 2018, 360 : 102 - 117
  • [33] Effect of CO2 on the structural variation of Na2WO4/Mn/SiO2 catalyst for oxidative coupling of methane to ethylene
    Shi, Jia
    Yao, Lu
    Hu, Changwei
    JOURNAL OF ENERGY CHEMISTRY, 2015, 24 (04) : 394 - 400
  • [34] Oxidative coupling of methane over (Na2WO4+Mn or Ce)/SiO2 catalysts: In situ measurement of electrical conductivity
    Gholipour, Zeinab
    Malekzadeh, Azim
    Hatami, Reza
    Mortazavi, Yadollah
    Khodadadi, Abasali
    JOURNAL OF NATURAL GAS CHEMISTRY, 2010, 19 (01): : 35 - 42
  • [35] Thermal effects during the oxidative coupling of methane over Mn/Na2WO4/SiO2 and Mn/Na2WO4/MgO catalysts
    Pak, S
    Lunsford, JH
    APPLIED CATALYSIS A-GENERAL, 1998, 168 (01) : 131 - 137
  • [36] Breaking the dilemma of low selectivity in the oxidative coupling of methane over Mn-Na2WO4/SiO2 at low temperatures
    Xu, Lin
    Zanina, Anna
    Wu, Kai
    Li, Jianshu
    Chen, Juan
    Li, Yuming
    Jiang, Guiyuan
    Kondratenko, Evgenii, V
    CHEMICAL ENGINEERING JOURNAL, 2023, 473
  • [37] Porous silicon carbide as a support for Mn/Na/W/SiC catalyst in the oxidative coupling of methane
    Wang, Huan
    Schmack, Roman
    Paul, Benjamin
    Albrecht, Matthias
    Sokolov, Sergey
    Ruemmler, Stefan
    Kondratenko, Evgenii V.
    Kraehnert, Ralph
    APPLIED CATALYSIS A-GENERAL, 2017, 537 : 33 - 39
  • [38] Surface WO4 tetrahedron:: the essence of the oxidative coupling of methane over M-W-Mn/SiO2 catalysts
    Ji, SF
    Xiao, TC
    Li, SB
    Chou, LJ
    Zhang, B
    Xu, CZ
    Hou, RL
    York, APE
    Green, MLH
    JOURNAL OF CATALYSIS, 2003, 220 (01) : 47 - 56
  • [39] Oxidative coupling of methane on flame-made Mn-Na2WO4/SiO2: Influence of catalyst composition and reaction conditions
    Koirala, Rajesh
    Buechel, Robert
    Pratsinis, Sotiris E.
    Baiker, Alfons
    APPLIED CATALYSIS A-GENERAL, 2014, 484 : 97 - 107
  • [40] Correlating Properties of the Mn2O3-Na2WO4/SiO2 Catalyst with Statistically Estimated Parameters for the Oxidative Coupling of Methane
    Huang, Baoting
    Hayek, Naseem S.
    Sun, Guanjie
    Mottaghi-Tabar, Sogol
    Simakov, David S. A.
    Gazit, Oz M.
    ENERGY & FUELS, 2021, 35 (11) : 9589 - 9598
12345