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A dry or semi-dry scrubbing system, unlike the wet scrubber, does not saturate the flue gas stream that is being treated with moisture.In some cases no moisture is added, while in others only the amount of moisture that can be evaporated in the flue gas without condensing is added.
The term wet scrubber describes a variety of devices that remove pollutants from a furnace flue gas or from other gas streams. In a wet scrubber, the polluted gas stream is brought into contact with the scrubbing liquid, by spraying it with the liquid, by forcing it through a pool of liquid, or by some other contact method, so as to remove the pollutants.
A venturi scrubber is designed to effectively use the energy from a high-velocity inlet gas stream to atomize the liquid being used to scrub the gas stream. This type of technology is a part of the group of air pollution controls collectively referred to as wet scrubbers .
Approximately 85% of the flue gas desulfurization units installed in the US are wet scrubbers, 12% are spray dry systems, and 3% are dry injection systems. The highest SO 2 removal efficiencies (greater than 90%) are achieved by wet scrubbers and the lowest (less than 80%) by dry scrubbers. However, the newer designs for dry scrubbers are ...
There are fewer mechanically aided scrubber designs available than liquid- and gas-phase contacting collector designs. Two are more common: centrifugal fan scrubbers and mechanically induced spray scrubbers. A centrifugal-fan scrubber can serve as both an air mover and a collection device. Figure 1 shows such a system, where water is sprayed ...
Adding baffles slightly increases the pressure drop of the system. This type of technology is a part of the group of air pollution controls collectively referred to as wet scrubbers. A number of wet-scrubber designs use energy from both the gas stream and liquid stream to collect pollutants. Many of these combination devices are available ...
the MECS ® DynaWave ® sulphur recovery unit, "reverse jet wet gas scrubber technology offers superior air pollution control by combining multiple functions into a single vessel, with high reliability, low maintenance and operational costs", [91] and the BELCO ® EDV ® wet scrubbing system for sulphur compounds in flue gas from the RFCC (see ...
Liquid-phase and gas-phase contacting scrubbers (3 P) ... Pages in category "Wet scrubbers" The following 7 pages are in this category, out of 7 total.