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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

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Cassir, M. Tashjian, V. Devynck, J. Moyaux, D. Claes, Paul [UCL]

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.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 1995
Language Anglais
Journal information "Catalysis Letters" - Vol. 35, no. 1-2, p. 45-56 (1995)
Peer reviewed yes
Publisher Baltzer Sci Publ Bv (Amsterdam)
issn 1011-372X
e-issn 1572-879X
Publication status Publié
Affiliation UCL
Keywords OXIDATIVE COUPLING OF METHANE ; METHANE DIMERIZATION ; C-2 HYDROCARBONS YIELD ; C-2 HYDROCARBONS SELECTIVITY ; CH4 CONVERSION ; SUPPORTED MOLTEN CARBONATE CATALYST ; LITHIUM ALUMINATE ; LITHIUM TITANATE ; LITHIUM-SODIUM-POTASSIUM EUTECTIC
Links
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Bibliographic reference Cassir, M. ; Tashjian, V. ; Devynck, J. ; Moyaux, D. ; Claes, Paul. 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. In: Catalysis Letters, Vol. 35, no. 1-2, p. 45-56 (1995)
Permanent URL http://hdl.handle.net/2078.1/47727