A LOGICAL AND MATHEMATICAL MODEL OF THE PHASE EQUILIBRIUM MODELING AND ITS APPLICATION AS A TECHNOLOGICAL INNOVATION BY EXAMPLE OF THE TRIGLYCERIDE MATERIALS TRANSFORMATION INTO FATTY ACID ESTERS

Abstract

This study was conducted in order to create a logical and mathematical model for the production of fatty acid esters from triglyceride raw materials, based on methods adapted to appropriate systems and ultimately aimed at solving problems of improving the quality of products, creating flexible technological schemes focused on a variety of raw materials and products, without time-consuming and lengthy experiments. The logical-mathematical model is based on the UNIFAC calculation model in a modified form, which provides data calculation adequate to the experiment. The modified UNIFAC model is confirmed by a set of experimental data, the calculation of technological parameters shows acceptability in predicting the optimal technological conditions of the processes used. The possibility of achieving compliance with the calculated experimental data is shown by examples of using the model in solving problems during the development of multi-stage extraction of free fatty acids from triglyceride raw materials when evaluating the composition of raw materials and liquid phases in extraction systems at different stages of the extraction process, as well as the obtained products using the gas chromatography method. The generalized data are presented in the form of a logical and mathematical model that describes the system of using the calculated data necessary for the production process. The logical-mathematical model takes into account several alternative variants of the technology, includes criteria by which the choice of a variant of the technological process takes place. The results obtained represent an important stage in the development of digital production technologies and experience in the development of technological innovations. The above model becomes the basis for transferring the technology of transformation of triglyceride raw materials into fatty acid esters to an innovative level, which lays the foundation for creating a cyber-physical system combining the work of a process engineer and a digital system.