What to do if the cetane number of catalytically cracked diesel is low?
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It’s much lower than the design value; it’s only 51
What is the design value? Your value is already quite high
In the case of mild hydrocracking with a high content of aromatic compounds in the feedstock, and when the product is light diesel, a cetane number of 51 is not considered low at all. The quality requirement specified in the Standard for Ordinary Diesel (GB 252) is not less than 45.
The cetane number of diesel is over 50 – is it too low? How high does it need to be? **It is sufficient as long as the diesel product meets the standard; keep in mind that many types of fuel require cetane number improvers to meet such standards, and diesel with a cetane number of 51 without such additives is already considered very good.
For the 56Axense process package with its designed values, how can operations be adjusted to achieve further improvements?
Heavy diesel is produced; the purpose of producing catalytically cracked diesel is to adjust other lower-quality diesels, and at present it can only be used for self-sufficiency
If the cetane number is increased, one can try raising its final boiling point