Reflux Reflux ratio in a distillation column. Infinite reflux ratio. Minimum reflux ratio. Optimum reflux ratio Effect of reflux ratio on the number of plates or trays in a distillation column Reflux ratio is the ratio of the amount of the liquid fed back to the column as reflux to the amount of liquid withdrawn as distillate. At total reflux operation, a minimum number of plates required. At the minimum reflux ratio ( Rm) is that reflux ratio at which a number of trays are infinite for required. The optimum reflux ratio usually lies in the range of 1.1 to 1.5 times the minimum reflux ratio please follow on Instagram page / chemicaladda please follow on Twitter page / chemicaladda please follow on Facebook page / chemicaladda please follow on blogger https://chemicalada.blogspot.com/