Heat exchange system analysis in the refining process

The article covers thermodynamic optimization of the primary oil distillation unit at a Russian plant. The optimization is carried out based on the exergy method of thermodynamic analysis, which allows accounting for both quantitative and qualitative characteristics of thermal processes. The study uses the principles and rules of pinch analysis. Thus, the article solves the problem of optimizing the heat exchange system of a primary oil refining unit using the method of pinch analysis and exergy. The aim of the article is to increase energy efficiency by reducing exergy losses in oil refining processes. The exergy pinch analysis of the primary oil distillation unit shows that the existing heat exchange system is not optimal. The paper proposes measures to optimize the installation heat exchange system. Exergy pinch analysis allows for a more efficient use of energy and resources at refineries, which is a relevant issue.