Deisobutane column operation
Thread Content
In the isobutane removal tower, there is a decrease in the bottom liquid level, a drop in the top pressure, and a decline in the liquid level in the reflux tank. What phenomenon is this? What happened?
Material imbalance – too much of the Reorganization component has been recovered?
This post was last edited by sdwfsgyykai on 2018-12-1 09:12; it wasn’t selected
If the amount of material sourced from outside remains unchanged, doesn’t that mean the feed volume is clearly lower?
Imbalance in material inflow and outflow; insufficient heat source
The problem description is vague and difficult to explain; by considering the temperature, pressure, liquid level, and material composition at various points in the tower feed, it should be possible to identify the cause.
It’s obvious that there’s an imbalance in the materials; the poster should take a close look at each flow rate – it’s very likely that one of the flow meters is inaccurate.
Material imbalance. Too much was taken from the bottom of the tower; after the liquid level at the bottom dropped, the heating steam was reduced, which led to a decrease in the tower pressure and the liquid level in the reflux tank.
This description is too brief; other parameters need to be checked. If there are no changes in those other parameters, then there is a tower level gauge