What are the factors that affect cetane number?
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Do diesel octane number 95 and the initial boiling point have an impact on the cetane number? Excessive reaction depth leads to a loss of cetane number; so how can we operate to maximize the cetane number while ensuring that parameters such as sulfur content remain within acceptable levels? Does operating pressure have an effect on cetane number?
50% is reserved for retention; there is no requirement for a low moisture content, so it can be increased slightly, but the cold shrinkage rate will rise
By controlling the reaction depth at an appropriate level, the octane rating is not lost; in fact, it can even increase. The octane number is contributed by long-chain alkanes; generally, increasing the hydrogenation pressure facilitates the saturation of aromatics, which can effectively improve the octane number
What kind of reply is this? ? Octane number is an indicator for gasoline, while cetane number is an indicator for diesel. Hydrogenation results in a loss of octane rating.
The purposes of saturated aromatics and the removal of sulfur, nitrogen, and oxygen are both to improve the stability of oils and reduce oxidation processes.