Developing of the mathematical model for controlling the operation of alkane dehydrogenation catalyst in production of linear alkyl benzene

•Process model dehydrogenation of alkanes is predicting the deactivation of catalyst.•The influence of raw material for the catalyst lifetime was obtained.•The optimum working parameters for different Pt-catalysts were determined.•The optimum flow rate of water in the reactor has been found.

The main results are presented on the modeling of the industrial process of catalytic dehydrogenation of C9–C14n-alkanes which is one of the technological stages in the production of linear alkyl benzene used in the synthesis of synthetic detergents. Application of the developed mathematical model in evaluating the influence of the raw material composition on the target product yield is considered. The calculation results are given for the optimal technological modes with different dehydrogenation Pt-catalysts and also for prediction of catalysts lifetime duration.