Aromatic content
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To what extent can a diesel hydrogenation unit, a diesel upgrading unit, and a hydrocracking unit reduce the aromatic content in the feedstock, respectively?
Diesel hydrogenation units, diesel upgrading units, and hydrocracking units are designed to reduce the sulfur content in the feedstock; the aromatic content is reduced only slightly, or almost not at all.
The hydrogenation of aromatics requires high reaction pressures to proceed effectively; increasing the hydrogen partial pressure can accelerate the saturation of aromatics, while it inhibits the rates of naphthenes dehydration and ring-opening reactions； Increasing the hydrogen partial pressure can also significantly enhance the reaction depth of aromatics