What is the role of the catalytic cracking re-refining tank?

What is the purpose of the crude oil tank? And what is the purpose of the reprocessed oil tank? Generally speaking, when the amount of reprocessed oil is large, a complete cycle cannot be achieved, and the reaction requires reprocessed oil; since reprocessing is necessary, stability must be maintained. Therefore, the reaction depth can be determined by the liquid level in these tanks. Just like the liquid level at the bottom of a distillation tower, if the reaction depth is low, the degree of oil cracking decreases and more heavy oil is produced, causing the liquid levels in the reprocessed oil tank and the distillation tower bottom to rise. In such cases, it is necessary to increase the reaction temperature to accommodate changes in the properties of the raw materials and to maintain stable operation. Of course, if the reprocessed oil tank becomes full, it doesn’t cause too serious problems – the excess oil simply overflows back into the tower.

The buffering effect is always present and can reflect the depth of the reaction

The reprocessing oil tank is simply a tank; it can sometimes supplement the fractionation tower. The level of liquid in this tank indicates the degree of reaction intensity. Under the same operating conditions, a decrease in the level of liquid in the reprocessing oil tank signifies an increase in the degree of reaction.

Put simply, the liquid levels in the re-refining tank and the bottom of the distillation tower are the “eyes” that indicate the degree of reaction”