Study of packed distillation column system,Study of adverse effects on plant control (distillation control) with change in operating parameters (loss of reflux, changes to feed rate, loss of vacuum, changes to base temperature, etc) . Unit Included: Feed vessel, preheater, distillation collumn with packing (MOC:SS316), thermosiphon reboiler, reflux drum with reflux pump, cooler, vacuum seal pot and vacuum pump.