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 %.

New kinetic model of n-paraffin С9-С14 dehydrogenation process on the industrial platinum catalyst in the adiabatic reactor with fixed bed of catalyst is offered. This model takes into consideration the changes of raw materials composition and technological conditions of the process. Numerical values of kinetic parameters are defined. The influence of raw material composition on selectivity of target reaction is studied.

The ways of controlling coke-formation in the process of n-paraffins C10-С13 using non-stationary kinetic model have been proposed. It is shown that one can provide maximum yield of the product at minimum coke-formation on the surface of Pt-catalyst varying process technological parameters on the model (temperature, material consumption, and circulating factor of hydrogen-containing gas).

The non-stationary mathematical model of the dehydration process of С9-С14 n-paraffins (Pacol-Difine) taking into account deactivation of a platinum containing catalyst as result of formation of carbonaceous depositions on its surface is developed. Its basis is formed by the experimental data of the industrial complex for production of linear alkyl benzole of the PA Kirishineftorgsynthes. It is proposed to use the volume of processed raw materials as deactivation parameter. Influence of work duration and process rigidity on activity and selectivity of process is shown. Известия Томского политехнического университета. 2006. Т. 309. № 3

Computer simulation system of dehydrogenation process of С10-С13 n-paraffin on the bases of formalized mechanism of hydrocarbon conversion on the surface of Pt-catalyst was developed. Given system makes possible to calculate current figures of the process and catalyst during the whole cycle of operation, to carry out prediction calculation of process parameters with regard to specific character of stock and process conditions; to forecast durability of service cycle of dehydrogenation Pt-catalyst operation.

This paper deals with a problem of mathematical formulation of reactor block development with ways of gas-feed flow in view. Experience of applied use of intellectual computer system has been observed. Influence of the reactor block configuration on a structure of activity of the catalyst and speed of its deactivation has been investigated. It has been shown that.diffusion hydrodynamic irregularities of gas-feed flow through catalyst bed result in different intensity of mass exchanged processes in peripheral and central zone of the reactor, thus reducing potential of catalyst activity and process effectiveness.