三井氧化反应器脱水段的水力学分析

Hydrodynamic analyses for the dehydration column of Mitsui PX oxidation reactor

对三井工艺的PX氧化反应器脱水段塔板水力学性能进行了分析,确定造成塔板效率低下的原因是塔板上持液量过低,提出用减小塔板开孔率的方法增加泡沫液位高度,进而提高板效,如将原22. 7%的开孔率减小到17. 1%后,莫佛里板效将由23%增加到36%。

Analyses on hydrodynamic for the dehydration column of Mitsui PX oxidation reactor were carried out,and the poor tray efficiency was attributed to insufficient foam height above the tray.Reduction of the open area was suggested as an effective way to increase the foam height as well as the tray efficiency.The results showed that when the open area decreased from 22.7% to 17.1%,Murphree efficiency increased from 23% to 36%.