Flexible coking and delayed coking
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Is the naphtha, diesel, and wax oil produced through flexible coking of lower quality than those produced through delayed coking? ?
It definitely needs to be processed again; I would like to know the group composition of naphtha, diesel, and paraffin oil from delayed coking.
Due to the higher reactor temperature and much shorter residence time, the liquid products from FXK contain slightly more olefins, aromatics, and sulfur. Depending on how each product is utilized, these quality differences can be advantageous or disadvantageous.
What are good raw materials for naphtha, diesel, and wax oil produced through flexible coking? ?
Under the same feed conditions, the diesel yield from delayed coking naphtha is higher than that from flexible coking naphtha. Due to the short residence time, flexible coking results in a high yield of wax oil; even when the residence time is adjusted, it still yields more wax oil than delayed coking.
Under the same feed conditions, the yield of naphtha from flexible coking is higher than that from delayed coking； The diesel yield from delayed coking is higher than that from flexible coking ；
I know that the gasoline and diesel produced through delayed coking cannot be used as products directly; they must undergo hydrogenation treatment. The coker wax oil goes into catalytic units, but the yield of light products is very low
The naphtha and diesel produced through coking certainly cannot be used directly as products; the focus is on determining whether they are suitable for use as aromatics or ethylene feedstock.