提高减压蒸馏进料汽化率技术研究

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。

DEVELOPMENT OF NEW EVAPORATION TECHNOLOGY FOR VACUUM DISTILLATION

To improve the feed evaporation rate of vacuum distillation, on the basis of studying the process of the vacuum distillation unit, a pressurized atomizing feed for deep-cut technology was developed. The pressurized atomizing feed system was investigated by a vacuum distillation experimental unit. The changes of vaporization rate of feed in different feeding modes were investigated, and the results show that, under the same system pressure and feed temperature, the vaporization rate of the nozzle feed is higher than the rate of non-nozzle feed and the vapor and liquid mixture feed. Simulated industrial vacuum distillation operation, with the a pressurized atomizing feed model the oil yield can be increased by 2-5% and the separation efficiency of the vacuum distillation tower is increased, The experimental results show that the pressurized atomizing feed is an effective method to improve the vaporization rate of oil.