【Daily Question】1.22 Fill-in-the-blank question: The purpose of installing a top circulation reflux system in a vacuum distillation unit is ( ), to facilitate heat recovery.
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Fill-in-the-blank: The purpose of installing a top circulation return in a atmospheric and vacuum distillation unit is ( ), to facilitate heat recovery. Reduce the cold reflux at the tower top: Correct +2; In-depth discussion +5 @Guan Gongyu
The purpose of installing a top circulation reflux in the atmospheric and vacuum distillation unit is to (reduce the cold reflux at the tower top), thereby facilitating heat recovery
The purpose of installing a top circulation reflux in a vacuum distillation unit is to (reduce the cold reflux at the tower top), thereby facilitating heat recovery.
The purpose of installing a top circulation reflux in a vacuum distillation unit is to (reduce the cold reflux at the tower top), thereby facilitating heat recovery. Principles for setting up circulating reflux: Depending on the number of side streams taken from the top of the tower, there can be one or multiple circulation reflux streams. Currently, many atmospheric and vacuum distillation units use top-ring reflux, with the aim of reducing the cold reflux at the tower top and thereby facilitating heat recovery. The number of such reflux streams is generally two – one intermediate and one secondary – and they are placed just below the layer from which the upper side streams are taken. In dye-type vacuum towers that produce only catalytic feedstocks, since there are no requirements regarding separation efficiency for the side stream products, it is possible to simplify the process by having the circulating reflux stream and the side stream oil both be taken out at the same tray level in the tower.
Reduce the cold reflux at the tower top to maintain stability there