功能

• This device is d to create a vapor-liquid equilibrium curve (so-called xy diagram) by knowing the composition of the gas and liquid phases.
• The xy diagram is an important guide when designing a distillation column.
• The column is vacuum jacketed, making it difficult to receive outside air temperature.
• * There is a special heater (mantle heater). ¥55,000
• This equipment collects data by experiment in order to create the so-called xy equilibrium diagram.
• x and y are the mole fractions of the light boiling component in the liquid and gas phases, respectively.
• The xy diagram is obtained by measuring the composition of the liquid phase and the gas phase by gas chromatography, etc., when the two components are heated and in equilibrium.
• It is created by connecting multiple measuring points by changing the preparation composition.
• The number of theoretical plates at total reflux is determined by drawing steps from the top composition XD to the bottom composition XW between the xy equilibrium line and the diagonal line.
• In this example, the number of theoretical stages is four.
• The column is vacuum jacketed so it is not easily affected by outside air temperature.