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This post was last edited by Catalyzing a Grain on 2019-4-27 23:25: What to do if diesel polycyclic aromatic hydrocarbons are above the limit?
It depends on the properties of the crude oil; no wonder catalysis is involved. The content of polycyclic aromatic hydrocarbons in diesel produced by various refineries is extremely high, and there are significant variations among them, which is closely related to the properties of the crude oil
If the raw material can’t be changed, then the yield has to be sacrificed. In the case of coking or catalysis, 95% of the diesel becomes lighter in composition; whereas hydrogenation increases the depth of the reaction. To maintain quality, economic benefits must be sacrificed.