The reason for the negative pressure generated in the coke tower during bubble coking!
Thread Content
The coke tower generates negative pressure during coking, of course only when the breather valve is open and everything is ready for operation! Please note that turning the mixture brown should not involve adding water~ Could everyone share their opinions?
If operations are carried out at the coke tower top temperature specified in the design for coking or before water injection, and the top vent valve is kept open, negative pressure can be completely avoided!
We also tried bubble coking, and no negative pressure was generated. Let’s discuss the specifics: was the oil and gas at the top turned off for venting? Do you often experience coking? When we carry out coking processes, we find that it has a very poor effect on cooling the coke; a large amount of steam is generated when the lid is opened, and the detectors for combustible gases and hydrogen sulfide keep giving alarms
That’s right! After the water supply is completed, close the overflow valve and open the breather valve. Normally, a positive pressure should be generated; since the water supplied keeps vaporizing, there should always be pressure. However, sometimes a negative pressure is created, sometimes reaching as low as 0.02!
I tend to agree with the view from the 3rd floor.