Abstract: The amine liquid circulation system has such problems as entrainment flooding of tower liquid blocking, decline of amine liquid quality. These problems may affect the stability of the unit and the energy consumption of the system is high. This paper takes a single set of amine liquid system in a refinery as the research object. It analyzes and diagnoses its current status and existing problems. The amine liquid circulation system is revamped and industrialized by the optimization of amine liquid system, anti-blocking tray, high-efficiency hindered amine desulfurizer and amine liquid filtration and purification technology developed by certain petrochemical research institute. Such optimization improves the system operation stability and obtains obvious energy saving effect.

Key words: amine solution system, desulfurization, energy consumption reduction, long-term, stability