A universal mathematical model is derived for a reforming process in a series of three reactors with an intermediate preheated mix. Results are presented for the modeling of reforming processes with a radial axial input of components of the reaction mix; this makes it possible to select the volume of catalyst and inlet temperature, which will ensure a product of the required quality with the reformer operating at a given output.Development and improvement of the oil-refining branch of industry is closely associated with deepening of the oil-refining process and an increase in the fraction of high-octane gasolines and aromatic hydrocarbons. One of the most critical processes in petrochemistry and oil refining is catalytic reforming, which is intended to increase the octane number of gasolines and to produce individual aerobatic hydrocarbons -benzene, toluol, and xylylol [1].Oil refineries are converting to new catalysts, which function under lower pressures and increasing depth and selectivity of transformations [2,3]. This conversion is preferable for reforming reactors with radial input of reagents, which require lower electric-power outlays for the process than reactors with an axial input.The need exists to develop a universal mathematical model permitting optimal control of the reforming process in various types of reactors and make it possible to analyze processes for a certain composition of reaction mix, output, and type of catalyst. The inclusion of a model of the reformer in the control circuit will ensure improved economic efficiency of the process.Using the transformation scheme for grouped components of a reaction mix [2], which contains the reactions for the formation of aerobatic hydrocarbons from paraffins and cycloparaffins, and the hydrocracking and isomerization reactions, and also utilizing a model of an ideal-substitution reactor with an adiabatic operating regime, a universal mathematical model was obtained for the reforming process in a series of three reactors with an intermediate preheated mix: AlCHex 6 ↔ Ar 6 + 3H 2 ; NPar 6 ↔ IzPar 6 ; AlCPent 6 ↔ AlCHex 6 ; AlCPent 6 + H 2 ↔ IzPar 6 ; NPar 6 + 5H 2 → 6CH 4 ; NPar 6 ↔ Ar 7 + 3H 2 ;

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For efficient operation of high-power aluminum reduction cells with prebaked anodes,full-time monitoring of the main technological parameters is required.This article discusses a multifunctional crust breaker of the automatic alumina feeding system. It provides the alumina supply to the bath by breaking the continuously solidifying crust on the surface of the melt. The multifunctional crust breaker is also a part of the automatic alumina feed system, providing regular automatic measurements of the process parameters.This article describes the development of a laboratory bench with a multifunctional crust breaking device. The goal and objectives are set. The design of the device is presented in the paper. The paper shows the advantages of using an automatic alumina feeding system with the developed multifunctional crust breaker.The positive effect of using the bench in the training process is discussed.

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