Influence of gas-carrier nature on aromatization of n.hexane in the presence of oxide catalysts

Influence of H2 on olefines output in the dehydrocyclization of n-hexane in the presence of oxide catalysts of various chemical nature (Al2O3-MoO3-K2O, Al2O3-V2O5-K2O, Al2O3-WO3-K2O) was determined. In the dehydrocyclization of n-hexane either in pulsed or continuous conditions in the presence of various oxide catalysts output of hexenes is higher and output of benzol is lower in the hidrogen atmosphere than in the atmosphere of the inert gas - helium. Supposition was made on the causes of this influence of hydrogen on the olefines and benzol output in the aromatization of paraffine hydrocarbons. Ratio of the hexen output to the benzol output in the higher degree depends on the hydrogen concentration in the reaction volume than on the volume speed of the initial mixture of hexane with gascarrier