Effect of Co2 and Melt Decarbonation On the Dimerization of Methane in Molten Li2co3-na2co3-k2co3 Supported By Lialo2 Or Li2tio3 At 750-850-degrees-c

Cassir, M.;Tashjian, V.;Devynck, J.;Moyaux, D.;Claes, Paul
(1995) Catalysis Letters — Vol. 35, n° 1-2, p. 45-56 (1995)

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Authors
  • Cassir, M.
    Author
  • Tashjian, V.
    Author
  • Devynck, J.
    Author
  • Moyaux, D.
    Author
  • Claes, PaulUCLouvain
    Author
Abstract
The oxidative dimerization of methane was investigated at 750-850 degrees C in Li2CO3-Na2CO3-K2CO3 immobilized within LiAlO2 or Li2TiO3 supports. Catalytic performance was enhanced with moderate melt decarbonation (i.e. with molten phase/LiAlO2 at 850 degrees C: CH4 conversion of 25% and C-2 yield of 12.5%), then dramatically fell with the precipitation of sodium and lithium oxide. The effect of the partial pressure of CO2 was analyzed. As in the case of binary carbonate eutectics, catalytic activity of the ternary melt was correlated with the presence of peroxide species. This activity was more important when using LiAlO2 support.
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Cassir, M., Tashjian, V., Devynck, J., Moyaux, D., & Claes, P. (1995). Effect of Co2 and Melt Decarbonation On the Dimerization of Methane in Molten Li2co3-na2co3-k2co3 Supported By Lialo2 Or Li2tio3 At 750-850-degrees-c. Catalysis Letters, 35(1-2), 45-56. https://doi.org/10.1007/BF00807003 (Original work published 1995)