Minimum reflux side strippers

To redistribute the stages in the remaining sections, a shortcut simulation is used to find out the required number of trays, the feed tray location and the minimum reflux ratio for each column in the sequence. To make use of the existing column with the same number of trays (24 trays) iterations are required to adjust the sum of the rectifying sections in each column equal to 24 (number of trays in the main column). Finally, the sequence of the simple columns is merged into a complex column. The main column is not changed, but the side strippers and pump arounds need to be relocated or adjusted. 

FIGURE 6.34 Tlie two CSs across die feed stage operating at minimum reflux for die (a) side stripper and (b) side rectifier. 

FIGURE 641 A side stripper for die (benzene, p xylene, toluene] system at minimum reflux using the TT technique. 

Leading to the heat demand of the column being Qss 1.554AHv /> for the side stripper, where the subscript SS indicates the side stripper. Following the same procedure, we are able to calculate the minimum reflux conditions for the side rectifier noting that in this case [0, 0.03, 0.97]. The design with all relevant... 

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