How Catalytic Cracking Stabilization Operations Can Improve Gas Quality
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Analyze the fluctuations in the gas volume at the top of the distillation column; determine how to increase this gas volume. Will fluctuations in the distillation gas volume cause fluctuations in the liquid level in the liquefied gas tank as well as fluctuations in the pressure at the top of the stabilizer? Seek solutions@
Fluctuations are bound to occur, as the main components in the analyzed gas are carbon one, carbon two, carbon three, and carbon four.
Increasing the temperature of the stripping tower, adding more heat to the reboiler, and appropriately reducing the pressure in the stripping tower will increase the volume of gas produced during stripping. To analyze the fluctuations in gas volume, one must first consider whether the feed to the stabilizer contains C2 and propylene, as well as the level of propane present. Entering the stabilizer affects its pressure, which in turn influences the liquid level in the stabilizer’s reflux tank.
Reduce pressure and increase the bottom temperature of the tower in order to boost the gas output from the separation tower
Increasing the bottom temperature of the tower and reducing the stripping pressure facilitates stripping; as the amount of gas released during stripping decreases, it is certain that the oil at the bottom of the stripping tower contains C2 components, and these components entering the stabilizer will cause an increase in the pressure within the stabilizer.
Regarding this issue, it is mainly related to analyzing the pressure at the Tatawinta; adjustments to the operations still need to be made based on the actual conditions.
How can the pressure in the decompression tower be reduced? Adjust the pressure at the top of the reabsorption tower?
In terms of pressure reduction, it is necessary to lower the pressure in the reabsorption tower. The task of maintaining stability in the absorption process is to achieve a proper balance – ensuring that there is no carbon dioxide present in the liquefied gas, and also ensuring that the level of carbon three in the dry gas does not exceed acceptable limits