Word forms: (regular plural) rectifiers
noun (Chemical Engineering: Distillation) A rectifier is the top part of a distillation column (= a tall vessel for distillation), in which hot vapor condenses. ⇒ The rectifier is the upper section of a distillation column and is where the higher concentration of lighter molecules are located. ⇒ In the crude distillation unit, the distillation column has two sections; the rectifier is at the top above the flash zone. ⇒ A rectifier is the top part of a distillation column, in which hot vapor condenses.
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