retention time

…However, as the field of fine chemistry is now attracting industrial attention, the advantages of batch reactors are being reconsidered for the production of small quantities of a wide variety of high-value-added products. In a flow reactor, the ratio of the reactor volume to the volumetric flow rate of the reaction fluid supplied to and discharged from the reactor is called the residence time (retention time), and compared to the reaction time of a batch reactor, it can be considered as a factor that determines the progress of the reaction in a flow reactor. If the reaction time and residence time are the same under the same reaction conditions such as temperature and concentration, the reaction progress will be exactly the same when a batch reactor is used as when a reaction is performed in a flow extrusion flow reactor. …

*Some terminology explanations that mention "retention time" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…しかしながら，ファインケミストリーの分野が工業的に注目されている現在，小量･多品種･高付加価値製品の製造のために，回分式反応装置の利点も見直されつつある。　流通式反応装置においては，反応装置容積とその装置に供給，排出される反応流体の体積流量との比を滞留時間residence time(retention time)といい，回分式反応装置の反応時間と対比させて，流通式反応装置の反応の進行度を決定する因子とみなすことができる。温度，濃度など同一反応条件下で，回分式反応装置で反応させた場合と流通式押出し流れ反応装置で反応させた場合とは，その反応時間と滞留時間が同じであれば，反応の進行度はまったく等しい。…

※「retention time」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