What are the reasons for the high density of refined diesel, and what are the ways to adjust it?
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What are the reasons for the high density of refined diesel, and what are the ways to adjust it?
If the boiling range is fine, the high density of refined diesel is mainly caused by a high content of aromatics; increasing the degree of hydrogenation to cause the aromatics to open rings can resolve this issue.
The cutting point has been set too high; adjust it so that the fractionation tower operates within the specified design parameters
Thank you! What are the approximate optimal parameters for general cutting?
It’s necessary to check the design archive drawings; depending on the feed and operating conditions, the cutting points will vary, and this is usually indicated on the PFD.
The densities of the feed and the product should be compared to assess the effect of hydrogenation; if the density of the feed is high, it can be reduced appropriately to ensure that the product meets the required standards.
It has been compared, and there isn’t much overall change