EXAMPLE #l: REFLUX DRUMI PROBLEM: Design a reflux drum for a distillation column o For a residence time of 15 minutes when half full, That has a length to diameter ratio L/d=3.0 and ◆ Is horizontal. OPERATING CONDITIONS o Flow rate out of drum is 5, 000 Kg/hr Flow is 100% Ethanol SG=0.7891 8/24/99 Equipment desi8/24/99 Equipment Design 5 EXAMPLE #1: REFLUX DRUM PROBLEM: Design a reflux drum for a distillation column u For a residence time of 15 minutes when half full, u That has a length to diameter ratio L/D = 3.0, and u Is horizontal. OPERATING CONDITIONS: u Flow rate out of drum is 5,000 Kg/hr u Flow is 100% Ethanol (SG = 0.789)