Energy-saving and consumption-reducing measures for atmospheric and vacuum distillation

In-depth discussion on energy savings and consumption reduction in atmospheric and vacuum distillation units http://bbs.hcbbs.com/viewthread.php?tid=189443&highlight=%B3%A3%BC%F5%D1%B9%D7%B0%D6%C3%BD%DA%C4%DC%BD%B5%BA%C4%B4%F3%CC%D6%C2%DB

In my opinion, on the premise of meeting the process requirements and the normal operating conditions of the tower, it is advisable to increase the draw rate from each side stream, reduce the reflux volume, lower the amount of stripping steam used, decrease the feed temperature to the tower, and reduce the operating pressure of the tower. It can be operated from the above aspects.

Carefully optimize various operational parameters, pay attention to correcting details and unreasonable working methods in daily tasks, and also focus on improving employees’ awareness of thrift.

I think there are the following points: 1. Optimize the heat exchange process to improve the utilization rate of heat； 2. At the heating furnace station, adjust the excess air coefficient and the three doors and one plate to reduce heat loss; regularly clean the convection chamber and air preheater ； 3. Reduce random discharge and improper placement; install samplers at the sampling ports ； 4. Only treated wastewater should be used for electrodesalination water injection ； 5. Clean the heat exchangers and water coolers during the annual major maintenance ； 6. Gas with reduced methane content is often introduced into the furnace as fuel to provide heat ； 7. Slightly increase the temperature at the top of the flash tower to reduce the water content in the crude oil fed to the constant-temperature furnace ； 8. Increase the moisture content of the raw materials fed into the device to improve heat exchange efficiency

The most important aspects are heat exchange and optimization of the heating furnace