Alkylation deisobutanizer tower
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This post was last edited by Catalytic Yisu on 2018-6-6 22:58. In the alkylation deisobutanizer tower, the poor pump loading at the bottom of the tower affects the feed amount of the de-n-butane tower, resulting in unstable n-butane operation. The top of the de-n-butane tower carries 36% isobutane. Does the amount of isobutane affect the feed amount of the de-n-butane tower?
It's possible, but we can't make a final determination based on the conditions you mentioned.
1. Normally, the deisobutanizer tower can press the material to the n-butanizer tower through pressure without the need for a pump.； 2. The poor pump volume at the bottom of the tower has little to do with isobutane being carried at the bottom of the tower. It should be caused by abnormal operation of your deisobutanizer tower, such as insufficient bottom temperature.
First of all, we must ensure the normal operation of the front desk to ensure that there is no normal pump volume. If the product is unqualified, it may be due to insufficient low temperature or other reasons. The cause should be identified and dealt with. If the product is unqualified, adjust it according to the indicators.
This post was last edited by sdwfsgyykai on 2018-6-5 17:50. The low inlet refrigerant and de-pump of the deisobutane tower are a three-way pipeline. Is it possible that it is a waste? Great gods
Impossible, what is the pressure of the deisobutane tower and the n-butane tower that will not make any effort?
Since so much isobutane is brought to the rear tower, I suggest you increase the reflux and reboiling. If you bring less isobutane, the pump will naturally have enough capacity. Hope it helps you
When the temperature is high at noon, the isobutane content at the top of the n-butane tower is 0.55 and the n-butane tower is 0.44 and 36.6, respectively.
Okay, thank you. The production load is still heavy.
The production load is too heavy/the bottom temperature of the tower is too low/the deisobutanizer tower operates abnormally, resulting in poor separation effect of the tower. A large amount of isobutane is brought to the rear path. The pressure of the deisobutanizer tower is obviously much higher. Normally it should be around 0.2Mpa. This should be due to changes in your process conditions, causing problems with the pump flow. You can provide suggestions on the lift, flow, back pressure, medium and other parameters of your pump.: Optimize the normal operation of the deisobutane tower to prevent a large amount of isobutane from being brought to the back road and reduce the flow rate while avoiding losses. The problem of pump flow rate will naturally be solved.
I'll see if I can stop one reactor tomorrow. It would be much better if I stopped it. Reducing production is the best solution.