Designing for More Capacity
In most process installations, vessel size is determined by needs other than mist eliminator capacity, such as:
- capacity of trays or packing
- evaporator volume requirements
- liquid holdup requirements
In these cases, traditional mist eliminator designs will readily meet the capacity.
In some equipment, particularly in knockout drums, the vessel size is set by the requirements of the mist eliminator itself. When plants are revamped for additional capacity, it is almost always more economical to reuse existing vessels rather than replace them with larger equipment.