Optimal Technological Parameters of Diesel Fuel Hydroisomerization Unit Work Investigation by Means of Mathematical Modelling Method

Mathematical model of diesel fuel hydroisomerization has been developed on the base of the system analysis strategy, which consists of the sequence of the following stages: thermodynamic analysis of chemical reactions possibility, the hydrocarbons conversion scheme drafting, kinetic model development, kinetic parameters estimation by means of inverse kinetic problem solution and large massive of full-scale experimental data and model verification to the real process. Using the developed model, the hydroisomerization process kinetic regularities have been investigated, the temperature influence in the range of 350–410^oC, pressure influence within 4.3-9.3 MPa, hydrogen containing gas flow rate influence in the range of 5000–53000 m³/h while the feed flow rate is 301 m³/h on the product composition have been studied. An optimal technological regime has been determined.