A new method is presented for olefin production by oxidative dehydroge
nation-cracking of light alkanes. ZSM-5 zeolites modified by Co, Mo, K
, Ca, Mgr etc., were used as catalysts. The selectivity of olefins in
the oxidative dehydrogenation-cracking of n-pentane and n-hexane great
ly increased in comparison with that in catalytic cracking on USY-zeol
ites.