Excessive cold reflux in the catalytic fractionation tower
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This post was last edited by Little Foolish God Pei on February 11, 2016, at 10:46. If too much cold reflux is fed into the catalytic fractionator, how will the reaction pressure change? Reason? Please discuss it
The reaction pressure increases, and the load at the top of the distillation column rises; the cold reflux temperature is around 35-40 degrees, and extensive vaporization leads to an increase in pressure
Well said on the second floor! That being said, top circulation is the proper approach when the distillation tower is operating normally. Cold reflux is only used temporarily in cases such as salt buildup in the top circulation system or failures of the top circulation pump.
Agree with the second floor! When the distillation tower is not operating properly, the cold reflux is very effective. It’s just a temporary fix; it’s better to solve it at the root!
Excessive use of cold reflux leads to an increase in reaction pressure; whether to employ cold reflux or not depends on the overall operation of distillation