Tag Archives for asphaltenes

How can the component of coke yield caused by precipitating asphal­tenes be reduced?

The yield of precipitated asphaltenes cannot be reduced because the asphaltenes in the coker feed will produce coke regardless of coke drum operating parameters.

10. July 2013 by Jack
Categories: Process Troubleshooting | Tags: | Leave a comment

What is shot coke?

Shot coke is composed of precipitated asphaltenes. Asphaltenes are large hydrocarbon molecules that are dispersed in the lighter aromatic and paraffinic oils in vacuum residuum. When these lighter molecules thermally crack and vaporize in the coke drum, the asphaltenes agglomerate … Continue reading

10. July 2013 by Jack
Categories: Process Troubleshooting | Tags: , | Leave a comment