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7


Teoret. i eksperim. khimiya. 2004. Vol.40 No. 3. p. 167-171

Comparative Efficiency of Oxygen and Nitrous Oxide in the Process
of Partial Oxidation of Methane on V2O5/SiO2

 

Yu. I. Pyatnitsky, L. N. Raevskaya, A. I. Bostan, M. V. Borisenko*


L. V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine
31 Prosp. Nauky, 03028 Kyiv, Ukraine. E-mail: yupyat@fm.com.ua

* Institute of Surface Chemistry, National Academy of Sciences of Ukraine
17 Vul. Generala Naumova, 03164 Kyiv, Ukraine


It is shown, that the rate of methane oxidation by nitrous oxide on V2O5/SiO2 catalyst exceeds the rate of methane oxidation by oxygen at relatively low temperatures, while the opposite ratio between the rates of the compared reations is observed at elevated temperatures. The effect is explained on the bases of the heterogeneous chain mechanism for methane oxidation.


Key words methane, formaldehyde, partial oxidation, nitrous oxide.