Deep vacuum distillation, being restricted by operating conditions such as the heat stability of crude and the vacuity of vacuum tower etc., is a complicated system engineering.
减压蒸馏深拔受原油热稳定性和减压塔真空度等操作条件的制约，是个复杂的系统工程。
2
The new liquid distributor has been already applied in revamping of the washing zone in crude vacuum distillationtower with high temperature, small flowrate, dirt and easy-coking material.
新型液体分布器已应用到温度高、液量小、物系脏、易结焦的原油减压蒸馏塔洗涤段的改造中。
3
The quality of vacuum distillates is closely related to the configuration of feeding part of the vacuum tower for crudedistillation.