The impact of reaction depth on diesel
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How can it be explained that the cetane number of diesel increases after the catalytic device lowers the reaction temperature?
By lowering the reaction temperature, the degree of cracking decreases, the dry gas yield drops, and the chains of diesel molecules become longer; as a result, the cetane number also increases appropriately. But these are all relative; it is possible to think this way within a certain range of operations.
The reaction depth is too low, resulting in a decrease in diesel density and a reduction in the aromatic content.