Simulation and Mathematical Representation of N-Octane Aromatization on Ge-Re-Pt/Al2O3, Cs-Pt/ Al2O3,Re-Pt/ Al2O3 Catalysts


In the present study mathematical representation was used to predict the reaction kinetics of the n-octane aromatization which tested with three types of catalysts by adding (Ge, Cs, and Re ) in order to improves the catalytic properties (enhanced the activity) of Pt/Al2O3 catalyst for n-octane aromatization. The aromatization processcarried out in the range of reaction temperature varying from (425 to 500 °C) and weighthour space velocity varied from (0.6 to 1.2 hr-1) with hydrogen as the carrier gas atatmospheric pressure.The results showed that the higher conversion of n-octane aromatization increasedwith temperature increasing but at temperature higher than (500 °C) hydrocrackingreaction is promoted. Whereas the effect of weight hourly space velocity has showninverse impact on conversion. On the other hand the yield of aromatic increase especiallybenzene and toluene which produce as secondary products from the hydrogenolysis of A8for three types of catalysts using in the process under the same operating condition. Thesimulation results of the model based on proposed kinetic model was compared with theexperimental results. The comparison between the predicted and commercially resultsshows a good agreement with error% between (6.91 – 17.87).