NEW SOLUTION FOR THERMAL COUPLING BETWEEN A CRUDE DISTILLATION UNIT AND A FLUID CATALYTIC CRACKING UNIT

摘要

Crude Distillation Unit (CDU) and Fluid Catalytic Cracking Unit (FCCU) are important plants in oil refineries which presents huge energy consumption especially due to high flow rates of material streams. Any acceptable solution for energy saving inside the process is important in this context. The thermal coupling between these two plants also may produce economic benefits as they have a large potential to exchange energy. The main objective of this work is to present retrofit solutions for advanced heat recovery inside these processes and through thermal coupling. To meet the objective, process simulation and process integration (Pinch Technology) were used. The two units were simulated using HYSYS® simulation environment and the relevant information about process and utility streams were extracted from simulation modules. Process integration methodology was used in order to reveal potential and targets for retrofit solution by advanced energy integration. More insights in the process allowed finding new possibilities, more attractive, for rational use of energy and from applicability point of view.