What are the necessary conditions for bubble coking in delayed coking?
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In our plant’s coking unit, the tower is first filled with cold coke water, and then overflow is used for cooling the coke; this method allows for a faster cooling process and prevents anyone from getting burned when the bottom cover is removed. Now we have automated bottom cover machines in use there. I’m thinking whether it would be possible to fill the tower with cold coking water, to stop the pump without changing the overflow setting, and then use this water to soak the coke in order to reduce its temperature. In that way, when it’s time to remove the coke, even if its temperature is high, it won’t have too much of an impact. I’m not sure if my idea is right Under what circumstances can the bubble coking and cold coking method be used without altering the overflow? Just to add, our production cycle is 36 hours! Thank you!
Waiting for the experts to give guidance! ! ! Waiting for the experts to give guidance! ! !
Where are you from? 22 hours is definitely enough
It takes a longer time to produce burnt coke; if the processing volume is large and the cycle for producing raw coke is short, then the overflow effect should still be significant and the process should proceed quickly.
Definitely not allowed to do this. If the coke temperature cannot be reduced, the coke will catch fire on its own.
Binyang Coking in Shandong – we operate 24/7, with a coking capacity of 1 million tons; our current production volume is around 100 tons!
We operate on a 36-hour basis with a coking capacity of 1 million tons; our current production volume is around 100 tons! The oil is quite heavy; it’s now almost at full capacity.
In the United States, the bubble coking method is commonly used for delayed coking, with a minimum turnaround time of 12 hours. When using this method, it is important to be vigilant regarding cracks that may form at the top of the coke tower; materials made of molybdenum steel are prone to cracking. It is recommended to use a 24-hour turnaround time, as this can increase the yield of liquid products and reduce the amount of coke dust carried away.
In the coking process, the position of the neutron level gauge must be appropriate, so as to be able to detect the level of water above the coke. The water pump must not stop operating; a small amount of water should be supplied, as water continues to evaporate at this stage and therefore needs to be replenished. The level of water must be closely monitored, as it cannot be too high – otherwise, if it overflows into the distillation tower, it could cause damage to the tower.
Then you can definitely use the scorching technique
Our plant should have stopped overflowing cold coke long ago; when the water level reaches a certain point, heat can be removed by using the evaporation of water! The top pressure is around 0.03 Mpa, and an automatic bottom cover machine is used for the bottom cover to prevent burns from hot water!