Reflux ratio

Japanese: reflux ratio(英語表記)refluxratio
Reflux ratio

...In this way, inside a distillation tower, liquid falls from above and vapor rises from below, resulting in gas-liquid contact. The liquid returned to the tower (reflux liquid) is simply called reflux, and the ratio L / D of the amount of reflux L to the amount of distillate D is called the reflux ratio. There are total and partial condensers in condensers. In total condensers, all the vapor from the top of the tower is condensed into liquid, but in partial condensers, some is taken out as vapor or gas, and some is liquefied and used as reflux.

*Some of the terminology explanations that mention "reflux ratio" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このように蒸留塔の内部では,上方から液が下降し,下方から蒸気が上昇して気‐液接触が行われる。この塔へ戻される液(還流液)のことを単に還流またはリフラックスといい,還流の量Lと留出液の量Dとの比L/Dを還流比reflux ratioと呼ぶ。コンデンサーには全縮器と分縮器とがあって,全縮器では塔頂からの蒸気はすべて凝縮されて液となるが,分縮器では一部は蒸気またはガスのまま取り出され,一部が液化されて還流となる。…

※「reflux ratio」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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