Knockout Drums
Designing knockout drums to include mist eliminators will reduce capital equipment costs and improve efficiency. Knockout drums relying solely on gravity settling remove only drops larger than 100 microns. Using an efficient mist eliminator will prevent entrainment of all drops larger than 5 to 10 microns. This higher efficiency reduces product loss; downstream corrosion; contamination; and damage to equipment such as compressors, molecular sieve driers, and blowers. Vessel weights can easily be reduced to half, and handling of liquid slugs is improved.
Designing knockout drums with Mist Eliminators reduce capital equipment costs and improve efficiency.
Evaporators
Customized mist eliminators reduce carryover of dissolved and undissolved solids to obtain specified steam condensate purity levels below 1 to 50 ppm. This not only prevents product loss, but it also protects compressor internals in vapor recompression systems, provides boiler feed water quality condensate, and prevents potential pollution problems. Industrial installations vary from chemical plants (caustic and inorganic chemical concentrators), to pulp and paper (black liquor and pulping chemical recovery), to the food industry (sugar, salt, and corn syrup production).
Mist Eliminators reduce carryover of dissolved and un-dissolved solids to obtain specified steam condensate purity levels. This not only prevents product loss, but it also protects compressor internals in vapor recompression systems, provides boiler feed water quality condensate and prevents potential pollution problems.
Steam Drums
Customized mist eliminators reduce carryover of dissolved solids to obtain specified steam condensate purity levels from 1 ppm down to 5 ppb without the need for external separator vessels. Operating pressures can range from 20 to > 2500 psig [1 to 170 bar].
Mist Eliminators reduce carryover of dissolved solids to obtain specified steam condensate purity levels.
Distillation Towers
Liquid entrainment can cause performance problems and limit capacity in packed and trayed distillation towers in two ways.
At intermediate draw-off trays, entrainment from below reduces product purity and can allow non-volatile contaminants into the draw-off liquid.
The overhead gas product can also be contaminated with liquid entrainment.
In both cases, the problem is often misinterpreted as a problem with the trays or packing. In reality, it is a problem of entrainment, which can be solved by a properly designed mist eliminator.
Liquid entrainment can cause performance problems and limit capacity in packed and tray distillation towers. At intermediate draw-off trays, entrainment from below reduces product purity and can allow non-volatile contaminants into the draw-off liquid. The overhead gas product can also be contaminated with liquid entrainment.
The entrainment is eliminated by a properly designed Mist Eliminator.
Scrubbers
From clean gas scrubbers and process vents to fouling services, such as flue gas desulfurization (FGD) systems or steel mill blast furnace exhausts, mist eliminators help improve efficiency and capacity.
