A simple kinetic model has been used to simulate catalytic naphtha reformers. The model idealises naphtha to three constituents, namely, paraffins, naphthenes and aromatics, with average properties assigned to each class. Out of the many reactions the mixture can undergo, four major reactions have been considered for which the kinetic parameters have been estimated using plant production data. The reactor model is validated against two different sets of plant data. The agreement between predicted results and observations is generally good. A sensitivity analysis of operating parameters on reactor performance revealed that, while temperature affects the aromatics production significantly, the effect of pressure is negligible.Un modtle cinttique simple a Ctt utilisC pour simuler des reformeurs de naphta catalytiques. Dans ce modtle, le naphta est represent6 par trois composants, soit les paraffines, les naphtenes et les aromatiques, avec des proprittts moyennes attributes ? i chacun des groupes. Outre les nombreuses rtactions que le mtlange peut subir, quatre rtactions principales ont ttt considtrtes pour lesquelles les paramktres cinttiques ont ttt estimts en utilisant des donntes de production d'une installation. Le modkle de rtacteur est valid6 en confrontant deux stries diffdrentes de donntes de production. L'accord entre les rtsultats prtdits et les observations est gtntralement satisfaisant. Une analyse de sensibi-lit6 des effets des parametres optratoires sur la performance du rtacteur rtvkle que l'effet sur la pression est ntgligeable, alors que la temptrature exerce un effet important sur la production des aromatiques.
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