Mo2C prepared on SiO2 was found to be an effective catalyst for the dehydro
genation of ethane to produce ethylene in the presence of CO2. The selectiv
ity to ethylene at 850-923 K was 90-95% at an ethane conversion of 8-30%. W
ith the increase of the temperature the dry reforming of ethane became also
a significant process. It is assumed that the Mo oxycarbide formed in the
reaction between CO2 and Mo2C plays an important role in the activation of
ethane.