The numerical simulation of turbulent flow in a FCC disengager was carried out.

A full-size numerical simulation of the flow in FCC disengager with diversion section was carried out by applying RNG k-ε model,stochastic tracking model and Eulerian-Eulerian multiphase model.

Analysis of coking mechanisms in residue fluid catalytic cracking disengagers;

Research progress of coking in disengagers of resid fluid catalytic cracking units;

Impact of fast separator construction of FCC riser reactor on oil vapor residence time in disengager

Transformation of the settler in a 140×10~4t /a heavy oil catalysis-cracking plant;

During the maintenance when the unit was shut down,3 leaking holes were found in the cyclone riser in the settler vessel,which resulted in the off-specification of sol- id in slurry.

A micro-vortex settler with corrugated inclined troughs,which has been used for the clarification of filtrate from non-cloth vacuum rotary filter in several Chinese sugar mills,is introduced in this paper.

The problems before the reconstruction of the drying tower and alkali subsider were analysed.

Presents the structure and process characteristics of the electrical precipitator, a key equipment of 60kt/a sulfuric alkylationplant with the imported STRATCO process,explains and checks its inner installation requirements, points out the problems of the electrical precipitator existed before 1997, and proposes detailed measures for improvement.