Malfunctioning distillation column can result in a large financial loss due to off-spec product, loss of production or unexpected shut down of the plant.
Column scanning allows an engineer to study tray or packing hydraulics inside a column at any set of online condition. It provides essential data to optimise the performance of vessels, extend column run times, track the performance-deteriorating effects of fouling and solids deposition, and identify maintenance requirements well in advance of scheduled turnarounds.
This on-line knowledge can reduce repair downtime significantly. By analysing the scanning results, a number of common malfunctions in trayed or packed bed vessels can be determined.
Height | 44 m |
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Diameter | 4.3 m |
Insulation thk. | 100 mm |
Single wall thk | 25 mm |
Number of trays | 55 |
Tray spacing | 686 mm |
Tray weir height | 51 mm |
Temperature | 360o C |
Pressure | 4.218 kg/cm2 |