摘要
为提高原油减压蒸馏装置馏分油的拔出率,研究了减压塔原料汽化过程,提出了一种新的强化汽化进料方法——喷嘴汽化进料,并在减压蒸馏装置上考察了不同进料方式下原料汽化率的变化规律。结果表明,在相同的系统压力和进料温度下,喷嘴汽化进料的汽化率高于无喷嘴进料和气液混相进料的汽化率,且更加接近该条件下的平衡汽化率。模拟工业减压蒸馏操作,减压塔产品分离效率提高,塔顶油品收率可以增加2~5百分点,说明喷嘴汽化进料方法是一种有效提高油品汽化率的方法。
To improve the deep-cut operation of vacuum distillation,an enhanced feed evaporation technology-nozzle atomizing technology was developed based on the principle of vacuum distillation. The changes of evaporation rate of feed in different feeding modes were investigated in an experimental vacuum distillation device.The results show that on the premise of the same system pressure and feed temperature,the pressurized atomizing evaporation rate of the feed through nozzle is closer to equilibrium vaporization rate and higher than that of nonnozzle feeding and vapor-liquid mixture feeding modes. The vacuum distillation operation under simulated industrial conditions shows that by a pressurized atomizing feed model the oil yield can increase by 2 percentage points—5 percentage points,indicating a higher separation efficiency of the vacuum distillation. It is concluded that the nozzle pressurized atomizing feeding is an effective method to improve the evaporation rate of oil.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2016年第5期24-28,共5页
Petroleum Processing and Petrochemicals
关键词
减压塔
汽化率
强化汽化
vacuum distillation tower
evaporation rate
enhanced evaporation
