Abstract

Nuthangi Seshadri¹, Chirumavilla Suresh¹,  Kalluri Seshaiah¹ and Maddila Suresh²*

The dehydrogenation of Ethyl benzene to styrene has been performed on cesium promoted bimetallic nitride (Cs/Co3Mo3N), 50% tin- zirconia (SnO2-ZrO2) individually as well as mixing of these catalysts in 1: 1 ratio. The greater catalytic activity shown towards dehydrogenation by mixed catalyst compared to individual catalysts is due to the synergistic effect between these two catalysts. For the first time Cs/Co3Mo3N showed activity towards dehydrogenation of ethyl benzene. Freshly prepared catalyst 50% SnO2-ZrO2 showed better activity compared to aged catalyst. This is because of transformation of tetragonal phase (freshly prepared) to monoclinic phase (aged catalyst). All of these catalysts are prepared by impregnation, co-precipitation and characterized by XRD, BET surface area and FT-IR.

Dehydrogenation; Bimetallic nitride; 50% SnO2-ZrO2; ethyl benzene; styrene

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