In the production of coal-based needle coke, pellet coke is generated – is the quality of the refined asphalt satisfactory?
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In the production of coal-based needle coke, pellet coke is generated – is the quality of the refined asphalt satisfactory?
Is the QI qualified? Why not conduct an analysis?
The QI is 0.15%, which is within the acceptable range, but bullet char is still generated; 6 towers have been tested so far
Our delayed coking unit uses petroleum feedstock; many years ago we encountered ball coking, which was caused by an issue with the feedstock – its asphaltenes content was too high. After adjusting the feedstock, the problem was resolved.
Ours is for debugging the test needle coke of refined asphalt; most of the asphalt has already been removed
Ours is for debugging the test needle coke of refined asphalt; most of the asphalt has already been removed
I have studied some information on needle coke, but I lack practical experience; I’ll analyze your question to see if my analysis is correct. To produce needle coke, it is necessary to slow down the coking rate; asbitumen is a component that accelerates the coking rate, so it must be removed. However, asphaltenes is a relative concept; components whose coking rate is slightly slower than that of asphaltenes can also coke rapidly under certain coking conditions and may become pellet coke as well. Therefore, raw material refinement should not be limited to removing asphaltenes; other factors also need to be taken into consideration. The coking conditions in the coke tower must also be taken into account regarding the impact on coking.
I have studied some information on needle coke, but I lack practical experience; I’ll analyze your question to see if my analysis is correct. To produce needle coke, it is necessary to slow down the coking rate; asbitumen is a component that accelerates the coking rate, so it must be removed. However, asphaltenes is a relative concept; components whose coking rate is slightly slower than that of asphaltenes can also coke rapidly under certain coking conditions and may become pellet coke as well. Therefore, raw material refinement should not be limited to removing asphaltenes; other factors also need to be taken into consideration. The coking conditions in the coke tower must also be taken into account regarding the impact on coking.
Could you send some photos to show what the coke coming out of the coke tower looks like? Thank you!