About
This page provides a basic visualisation of a binary distillation equilibrium graph.
You can manipulate the feed condition, reflux ratio and desired distillate purity (of the lighter component) using the sliders to see how the graph responds.
- The solid black lines represent the equilibrium data and the 45-line
- The dashed lines represent the top and bottom operating lines of the column
- The red line represents the q-line which is determined by the feed condition
System Information on the right will change as you move the sliders. For the purpose of this page, the bottom operating line remains fixed and cannot be manipulated.
System Information
- This system is at the current reflux ratio is not feasible with this feed condition
- The q-line does not intersect top operating line within the equilibrium region, which is the area between the curved line and the 45-line
- This system at the current reflux ratio is feasible with this feed condition
- The q-line intersects the top operating line within the equilibrium region, which is the area between the curved line and the 45-line
- The higher the reflux ratio is above the minimum, the lower the number of theoretical trays the system requires
- The system is now at its minimum reflux point at this feed condition
- In order for the distillate product to have the desired purity, the reflux ratio must be greater than or equal to the current value
- A reflux ratio of this value will yield the highest number of theoretical trays for this feed condition