Calculation Of Distillationcolumn Internal Reflux

Internal Reflux Model

In the design of distillation columns, engineers use internal reflux in their calculations rather than external reflux. Important indices for column separation ability are internal reflux distillate and boilup bottom-product ratios. Increasingly we are controlling columns on the basis of internal reflux rather than external reflux. The most common method of determining internal reflux makes use of external reflux flow measurement and the number of degrees of condensate subcooling see Figure...