In all major industries regularly scheduled stops are organized for important maintenance tasks. A turnaround includes the full cycle of preparatory work, the actual shutdown and execution of works until the restart. A shutdown and/or turnaround is a complex and critical activity for petrochemical companies. These industries organize on large installations for their production, regularly scheduled stops, or shutdowns. During these shutdowns, the most important maintenance tasks are carried out. The shutdown and turnaround process contains the complete cycle of preparatory work, the actual shutdown, the turnaround process and finally the restart. Many (mostly external) people are involved and under great time pressure a lot of work has to be done. Maintenance of installations is necessary for their preservation and sustainability.
If we think of column, we think of:
Vapor liquid distributors
We inventory various types and sizes of installation material. Random packing is dumped into the column’s section. It is less expensive than structured packing but has a lower productivity and offers more weight drop. Structured packing are specially designed materials for use in distillation column, chemical reactors and used in absorption. It consist of thin corrugated metal plates arranged in a way that force fluids to take complicated paths through the column, creating a large surface area for contact between different phases. You can contact us for all kind of column internals. Examples are liquid distributors and redistributors, support grid, hold-down grid, liquid collectors, trays, schoepentoeter, bubble caps, random and structured packing.
The type of internals depends on numerous things such as best suited for fractionation, a given distillation or other mass transfer process tower. Other things that are important are pressure drop, corrosion, the needed capacity, fouling, efficiency and/or previous plant experience. Internals are available in many different materials like ferritic-, carbon- or austenitic steel, titanium,…
We can fabricate a full range of tower internals for your process requirements. VDR Chemtech BV offers vast experience in providing total solutions for process column applications.