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Nonoxidative aromatization of CH 4 using C 3 H 8 As a coreactant: Thermodynamic and experimental analysis

Industrial and Engineering Chemistry Research, 15 January 2014, Vol.53(2), pp.572-581 [Peer Reviewed Journal]

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  • Title:
    Nonoxidative aromatization of CH 4 using C 3 H 8 As a coreactant: Thermodynamic and experimental analysis
  • Author: Bijani, P.M. ; Sohrabi, M. ; Sahebdelfar, S.
  • Found In: Industrial and Engineering Chemistry Research, 15 January 2014, Vol.53(2), pp.572-581 [Peer Reviewed Journal]
  • Subjects: Propane ; Methane ; Thermodynamic Equilibrium ; Thermodynamics ; Reactors ; Conversion ; Streams ; Methylation ; Analysis (MD) ; Chemical Analysis (Ep) ; Chemical Analysis (Ed) ; Chemical Analysis (EC)
  • Rights: Copyright 2014 Elsevier B.V., All rights reserved.
  • Description: The effect of propane addition to the feed of methane aromatization process was studied both thermodynamically and experimentally. Thermodynamic equilibrium calculations were performed within temperature, pressure, and CH sub(4)/C sub(3)H sub(8) molar ratio ranges of 673-873 K, 1-10 bar, and 0-20, respectively, considering different constraints according to two alternative reaction network models. Experimental evaluations were conducted in a fixed-bed reactor over Zn/HZSM-5 catalyst under different operating conditions. Methane formation showed an induction period of about 4 h on stream. Aromatic yield slightly increased with increase of methane concentration in the feed. Experimental results showed the best agreement with the thermodynamic model based on a proposed mechanism of methylation of propane-derived aromatics by methane, giving equilibrium methane conversions of about 1% under the above conditions. Both thermodynamic and experimental results revealed that...
  • Identifier: ISSN: 08885885 ; E-ISSN: 15205045 ; DOI: 10.1021/ie400786z

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