The article is devoted to the issue of thermodynamic optimization of an oil refinery. Optimization is carried out by the exergy method of thermodynamic analysis, which allows you to take into account the quantitative as well as qualitative characteristics of thermal processes. The research uses the principles and rules of pinch analysis. Thus, the article discusses the task of optimizing oil refining processes using the pinch analysis method using exergy. The objective of the article is to increase energy efficiency by reducing exergy losses in technological processes of oil refining. The results of the study allow us to determine exergetic losses and propose measures to reduce them.
The exergy system is the maximum work that can make the system in the transition to a state of equilibrium with the environment. Exergy analysis of heat power and process plants takes into account not only quantitative but also qualitative characteristics of energy resources in various elements of the plants. The pinch method allows solving specific design problems to optimize the parameters of thermal power facilities. The paper presents an exergy analysis of such an object on the example of a boiler using pinch-method. The results show that to improve the energy efficiency of the boiler can change the surface area of the heating economizer and air heater.
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