For reprocessing oil, is it better to reprocess it or send it back to the tower?
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Which is better in terms of yield and production costs? Why?
When reprocessing is used, the overall yield is higher, but the energy consumption is correspondingly higher as well.
We generally focus on the one-way conversion rate; usually, neither the oil slurry nor the reprocessed oil is reused, in order to increase the gasoline yield
As needed, if the bed temperature is low, more retraining can be used
If a large amount of gas is produced, the temperature required by the device is relatively high. It is better to reprocess the oil, as this helps to maintain the amount of coke generated by the plant and ensures its thermal balance.
In our plant, the re-refining of oil is carried out with a low amount of feedwater!
A certain amount must be returned to the tower. As for whether reprocessing is necessary, it depends on the heat balance in the regenerator and the desired yield of the product; factors such as the energy consumption of the plant, catalyst activity, and the liquid level in the reprocessing tank also need to be taken into account
It is neither recycled nor returned to the tower. Go straight to coking.
It is recommended to test the distillation range and components of the reprocessed oil; if it contains a high amount of light components, reprocessing can be considered. However, the reaction depth is relatively large, and the density and viscosity of the slurry are high; it is recommended to return it to the tower. Ensuring the slurry system is also crucial.
This can be determined based on actual operations. It has been explained very clearly upstairs. Don’t be too rigid. Flexibility in operation is what really matters.
A certain amount must be returned to the tower. As for whether reprocessing is necessary, it depends on the heat balance in the regenerator and the desired yield of the product; factors such as the energy consumption of the plant, catalyst activity, and the liquid level in the reprocessing tank also need to be taken into account