Why is the bottom temperature of the absorber in a catalytic cracking unit higher than the feed temperature?
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The bottom temperature of the absorption tower in our unit is around 49 degrees, while the feed temperature is only about 42 degrees. What causes this?
To be more precise, the absorption tower is a complete distillation column, with a reboiler at the bottom and a cold reflux at the top; P
Does \"feed\" refer to the temperature of the rich gas? Pay attention to the temperature of the gasoline absorbent, whether there will be errors due to the locations of various temperature measurement points, and whether blind plates have been installed for the vapor purge at the bottom of the tower
What is the cooling temperature after the compressor?
Since absorption is an exothermic process, the temperature will be slightly higher than that of the feed
You haven’t understood the principle of absorption; absorption is an exothermic process
The temperature of the rich gas is approximately 41 degrees, the temperature of the stabilized gasoline is 39 degrees, and that of the crude gasoline is 42 degrees; in short, all the feed temperatures are lower than the temperature at the bottom of the tower. I also know that absorption towers release heat, but no matter how much heat is released, how can it be more than several degrees higher than the tower’s own temperature?