关键词: 催化裂化装置, 再生器, 旋风分离器, 磨损, 跑剂, 故障诊断, 颗粒物性, 压力降,

Abstract:

Cyclone separator is usually used for gas-solid separation in FCC unit. When the cyclone separator is worn, its separation efficiency will directly deteriorate, resulting in catalyst loss fault. Taking the cyclone separators in the regenerator of the 1.0 MM TPY FCC unit as the research object, the effect is analyzed that the wear of the cyclone separator to the catalyst loss amount, the pressure drop of the cyclone separator and the physical properties of catalyst particles in view of the catalyst loss fault of cyclone separator in an operation term. The results show that at that time, abnormal changes not only occur in the separation efficiency and pressure drop, but also in physical properties such as catalyst particle size distribution. Therefore, the physical properties of catalyst particles inside the unit and escaping from the unit can be used to diagnose the catalyst loss fault. A method for analyzing the wear and catalyst loss of cyclone separator is established, which can be applied to the analysis and diagnosis of catalyst loss fault in FCC unit.

Key words: FCC unit, regenerator, cyclone separator, wear, catalyst loss, fault diagnosis, physical property of particles, pressure drop,