Simulation and optimisation of 1.2MT/A FCCU absorption-stabilisation system

Le résumé fourni par la source

Catalytic cracking is the primary process in petroleum refining and the absorption and stabilisation system is critical to producing liquefied petrochemical gas (LPG) and stabilising gasoline. According to the analysis, installing a direct contact heat exchange tower (HET) after the compressor could decrease duty of cooling exchanger of the compressed rich gas. The compressed rich gas could be allowed to directly enter and exchange heat with the rich absorption gasoline and desorption gas in HET. The original compressed rich gas cooling exchanger only is used to cool down the gas from HET. Thus the energy consumption of the exchanger could be considerably decreased and the electricity was saved 1,672 kW•h. In other hand, the feed of the desorption tower was changed to Hot and cold double feeding two feeds Thus the duty of the reboiler of the desorption tower was reduced and the steam consumption of 3.5 MPa was saved 2.73t/h. [Received: February 9, 2024; Accepted: April 30, 2024]

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.