Please advise on reflux ratio of distillation tower
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As shown in the figure, components A and B are easy to liquefy, while components C and D are inert components that are difficult to liquefy. Is the reflux ratio of this distillation tower R=50/215=0.23? Thank you!
The ratio of the reflux liquid flow rate L returned from the top of the distillation column to the product flow rate D at the top of the column, that is, R=L/D.
Is this calculation correct as shown in the picture? Thanks!
The product at the top of this tower is not the product, but the product that needs to be discharged. The product is at the bottom of the tower. The product I need is component A.
If there is no special explanation for the reflux ratio of the distillation tower (such as reflux feed ratio, reflux product ratio), it refers to the ratio of the reflux flow to the gas phase amount at the top of the tower. The reflux is 50, which is no problem. The gas phase amount at the top of the tower should be 50+215=265 (referring to the gas phase at the top of the tower, including the top production volume + reflux volume). The reflux ratio should be 50/(50+215)=0.19. Please correct me if you have any different opinions.
F=D+W, D=L+Lg, R=L/D