Scrubbers, chemical scrubbers or gas scrubbers as they are also known, are pollution control devices designed to remove unwanted pollutants from a gas stream. These pollutants can be chemicals such as ammonia, chlorine or sulfur compounds. In industry the main two types of scrubber are wet and dry scrub...
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Scrubbers, chemical scrubbers or gas scrubbers as they are also known, are pollution control devices designed to remove unwanted pollutants from a gas stream. These pollutants can be chemicals such as ammonia, chlorine or sulfur compounds. In industry the main two types of scrubber are wet and dry scrubbers of which there are many different designs available to choose from.
They are often used in the chemical processing industry and gas scrubbing usually takes place in packed columns which contain packing such as raschig rings or pall rings. Gas enters the bottom of the column and travels upwards through the packing, a scrubbing liquid enters the top of the column and is distributed evenly across the packing. After the scrubbing the lean gas exists through the top of the column and the strong liquor remains in the bottom. They are often constructed from synthetic material such as glass reinforced plastic due to the aggressiveness of the pollutants and chemicals used.
