Effect of Geometrical Parameters on Extraction Efficiency of the Annular Centrifugal Contactor

The geometrical parameters of annular centrifugal contactors (ACCs) have an important influence on the extraction efficiency. present work used a home-made 25 mm ACC constructed by 3D printing to investigate effect five These are width (d), clearance height (Hc), rotor inlet diameter (Din), bottom vane number (N), and vane’s bending direction (S). Central composite design was employed experiment, response surface methodology analyze data. results show that Hc Din were positive for efficiency, while d N negative. When same as liquid helical flow direction, efficiency improved compared straight vane. It is found 3 d, 5 Hc, 6 Din, four clockwise covered vanes where reached highest point 94.5%. We analyzed interactions between based coefficients quadratic equation, not considered in previous studies. This surprisingly reveals effects independent, there parameters. interaction significant could be ignored. serve reference optimizing processes ACCs.