AROMATIZATION OF PROPANE OVER GA H-ZSM-5 - COMMENTS ON THE ACTIVATIONOF PROPANE/

The aromatisation of propane has been studied using Ga2O3, H-ZSM-5 and physical mixtures of Ga2O3/H-ZSM-5 as catalysts. Experiments using co -fed reactants of H-2, O-2 and NO are described, together with the use of 2-chloro-propane as a model reactant. The results are discussed in terms of a mechanism for the formation of the initial product propene in which propane is activated at the interface between the gallium ox ide and the zeolite. The system is therefore an example of contact syn ergy and furthermore experiments are described that provide evidence f or the reversible formation for the active site for this catalyst syst em.