Extractive distillation and azeotropic distillation are two distinct methods used in chemical processes.
The main difference between these two methods lies in the terminology used for the third component added and the location of the product obtained.
In azeotropic distillation (AC), the third component added is referred to as the entrainer.
In extractive distillation (EC), the third component added is referred to as the solvent.
This distinction in terminology highlights the different roles played by the third component in each process.
Another key difference is the location from which the product is obtained.
In AC, the product is obtained from the bottom of the distillation column.
In EC, the product is obtained from the top of the column.
It is important to note that these differences are specific to the terminology and location of the product in extractive and azeotropic distillation.
The underlying principles of distillation, such as separating compounds based on boiling points, remain the same in both processes.
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