The development of modern technological processes for processing natural hydrocarbon raw materials and the optimal operation of existing production facilities is impossible without the use of modeling programs that have a high accuracy in describing the parameters of technological processes and allow studying these processes without significant material and time costs. Such model studies are of great importance not only for the design, but for the functioning of existing industries, as they allow us to take into account the influence of external factors on the performance of existing industries. Currently, a large number of software tools for modeling chemical technological processes are available to process engineers. When designing process flow diagrams for oil refineries and petrochemical plants, different departments of design institutes perform different types of work, using different software. The same applies to the so-called BIM - technologies implemented by installation and technological departments and the subsequent use of constructed installation diagrams in the existing production. Thus, this article discusses the problem of transferring data from the UniSim Design technological process modeling program to the AVEVA Everything3D computer-aided design systems for further use in the design process of the obtained design data of selected technological equipment. The technological process of steam generation was simulated in the UniSim Design program. An original module for transferring data to AVEVA Everything3D has been developed. The article presents the results of the module.