The catalysts of industrial gasoline reforming reactors with different process technology (fixed bed and continuous catalyst regeneration) were investigated. The structure of coke on the surface of platinum reforming catalysts was analyzed using derivatography to improve industrial performance of these catalysts. It is found that coke-gene structures, which deactivates the catalyst, are formed by the current deviation from the optimum activity of the catalyst is approximately equal 6 %, when the equality rates of formation and hydrogenation of intermediates seal is achieved. The continuous monitoring of industrial units with using of previously developed chemical-physical models allows to control and regulate the process conditions, to reduce the quantity of coke on the catalyst on 1–3 wt.% and thereby to prolong the life of the catalyst on 20–30 %.