Why is the color of hydrogenated refined diesel yellow?
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Why is it yellow sometimes and colorless other times?
Why does diesel turn green if it has a high nitrogen content after refining?
Why is no one answering? Why is no one responding?
Refined diesel turns yellow over time; a green color indicates that the purification level is not sufficient, in which case the amount used can be reduced slightly and monitored
This is likely related to the reaction temperature and pressure. At first, the product was orange-yellow in color; after reducing the reaction temperature, the color improved
Hydroprocessed diesel has a yellow color, which indicates a high degree of blending with catalyzed diesel; increasing the depth of the reaction can help improve this situation!
It is possible to check the sampling analysis to see if it is the high sulfur content in the diesel that causes the yellowing. . .