1 INTRODUCTIONThe demands of dienes and alkenes have increasedtremendously throughout the world due to the vastgrowth of polymer industry.Oxidative dehydrogena-tion of lower alkanes(C-C) offers an alternationto thermal pyrolysis and catalytic dehydrogenation asa route for the production of alkenes.But the re-actants and desirable products are easy to be deeply