Abstract: The hydrodynamics and mass transfer of Plum Flower Mini Ring (PFMR), Pall Ring and Intalox
Saddle were studied in a 600 mm diameter column with air-oxygen-water system over a wide
range of liquid loads. It was shown fiom the experiments that PFMR had much lower
resistance, larger throughput and higher mass transfer efficiency than Pall Ring and
Intalox Saddle. It was clear from the comparison that existing equations could not predict
the performance of packings very well at high liquid loads. Therefore, new semi-empirical
equations of pressure drop, flooding gas velocity and height of transfer unit (HTU) were
proposed based on the experimental data.

Key words: Plum Flower Mini Ring, packing, hydrodynamics, mass transfer

摘要： The hydrodynamics and mass transfer of Plum Flower Mini Ring (PFMR), Pall Ring and Intalox
Saddle were studied in a 600 mm diameter column with air-oxygen-water system over a wide
range of liquid loads. It was shown fiom the experiments that PFMR had much lower
resistance, larger throughput and higher mass transfer efficiency than Pall Ring and
Intalox Saddle. It was clear from the comparison that existing equations could not predict
the performance of packings very well at high liquid loads. Therefore, new semi-empirical
equations of pressure drop, flooding gas velocity and height of transfer unit (HTU) were
proposed based on the experimental data.

关键词: Plum Flower Mini Ring;packing;hydrodynamics;mass transfer