Increase of the refluxratio can improve the removal efficiency, with optimumrefluxratio is 60%-80%.
适当提高回流比，可提高去除效率，一般最佳回流比为60% ~ 80%。
2
By analyzing the changes of refluxratio, the optimum feed positions within the two distillation columns in the experimental device for double-effects distillation HGL of forward feed was determined.