Relationship between top temperature and pressure in a catalytic cracking stabilizer tower
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What is the relationship between the top temperature and pressure in a catalytic cracking stabilizer? For example, how does pressure change with rising temperature? Is there a specific calculation or analysis process? I hope an expert can help me answer this. Thank you~
With the same operating conditions and product composition, the top temperature of the tower is high, and the operating pressure of the tower is also high. With high operating pressure, the top temperature of the tower is inevitably high. During actual operation, adjustment is a slow process; only the tower pressure increases, while the bottom temperature does not rise and the top temperature may decrease.
Is the poster from the same department as me?
Is there any analysis or explanation for this drop in temperature? I’ve been confused all along.
The principle is not clear; specifically, when the temperature at the top of the tower is high, the pressure in the reflux tank decreases. Of course, if the temperature at the bottom of the tower rises indefinitely, the pressure will definitely soar
If the pressure increases, the temperature should also increase; some posts say it first decreases and then increases. Why is this? I don’t understand it anymore……
Simulation results may not be accurate; only practical testing can confirm them
To ensure that the liquefied gas meets quality standards, its production volume must remain constant; therefore, a high temperature at the top of the distillation column facilitates the distillation of the liquefied gas. A high pressure at the top of the column is necessary to prevent such distillation. Hence, for the liquefied gas to be of acceptable quality, both high pressure and high temperature are required.