What is a rectifying section?
What is a rectifying section?
At the rectifying section, the more volatile component is removed through contacting the rising vapour with the down-flowing liquid. At the stripping section, the down-flowing liquid is stripped of the more volatile component by the rising vapour. The distillation can be equipped with trays or packings or both.
What is rectifying line?
The rectifying section operating line for the section above the feed inlet of the distillation column (shown in green in Figure 1) starts at the intersection of the distillate composition line and the x = y line and continues at a downward slope (Δy/Δx) of L / (D + L), where L is the molar flow rate of reflux and D is …
What is rectifying and stripping section?
The collection of trays above the feed stage is called the rectifying section of the distillation column and distillate product is generally withdrawn from the top of the column. Trays below the feed stage comprise the stripping section of the column and bottoms product is withdrawn from the reboiler.
What does the McCabe-Thiele diagram tell us?
Summary. A McCabe-Thiele plot is a simplified tool to assist in understanding distillation. It is a method for calculating the number of theoretical trays required for the distillation of a binary mixture.
What is a rectifying column?
[′rek·tə‚fī·iŋ ‚käl·əm] (chemical engineering) Portion of a distillation column above the feed tray in which rising vapor is enriched by interaction with a countercurrent falling stream of condensed vapor; contrasted to the stripping column section below the column feed tray.
What is a rectifying tower?
Papers by Keyword: Rectification Tower Abstract: In general, two tower process was used to purify crude chlorobenzene, of which the primary tower is to remove benzene and water, and the rectification tower to remove higher boiling components.
What is the Rayleigh equation?
In fluid dynamics, Rayleigh’s equation or Rayleigh stability equation is a linear ordinary differential equation to study the hydrodynamic stability of a parallel, incompressible and inviscid shear flow.
What is the reflux ratio?
The reflux ratio is defined as the ratio of the liquid returned to the column divided by the liquid removed as product, i.e., R = Lc/D.
What is rectifying column?
Rectification column is designed for separation of liquid mixtures, components of which feature different boiling points. The rectification column refers to a vertical cylinder with contact devices mounted inside.
What is the process of rectification?
Rectification is the process of converting alternating current (AC) which reverses its direction periodically to direct current (DC) which flows only in one direction.
What are the assumptions of McCabe-Thiele method?
Within this framework, the assumption that the saturated liquid and vapor enthalpy curves are parallel lines, apart from adiabatic and isobaric operation of the distil- lation column, is shown to be sufficient to derive all the major results of the McCabe-Thiele method including the constant molar overflow condition.