1results about How to "Controllable distribution" patented technology

The present application provides a dehydrogenation catalyst, a preparation method and application thereof, and a method for preparing ethylene by oxidatively dehydrogenating ethane and carbon dioxide, the catalyst comprising a carrier and a dehydrogenation active component supported on the carrier, the dehydrogenation active component comprising a first active component and a second active component, the first active component being iron, and the second active component being selected from one or more of cobalt, nickel, copper, zinc and palladium, and the dehydrogenation active component being concentratedly distributed on the surface of the carrier; and / or the reduction peak temperature of the dehydrogenation active component in a hydrogen temperature programmed reduction test is greater than the reduction peak temperature of a sample with a corresponding active component dispersion of 50%. The present application can change the distribution of the multi-metal active component on the surface of the carrier by controlling the synthesis conditions, and further adjust the selectivity of the catalyst to the oxidative dehydrogenation reaction of low-carbon alkanes.