ChemSOF

Problem Statement

A mixture of Acetic Acid(Mole fraction = 0.5)and Water (Mole fraction = 0.5) is to be boiled off. Initially 100 mols of the mixture are taken in the still. Ideal Vapor and Non-Ideal Liquid is to be considered. Two operation steps have been defined. In first Operation Step, Boil off is done at 760 Torr at Boil Off rate of 50 Mols/hr for a period of 1 hours. In second Operation Step, Boil off is done at 760 Torr at Boil Off rate of 40 Mols/hr for a period of 1 hour.

Step By Step Screenshots for Different Panels

Boil Off Results from the Calculator

	BOIL OFF RESULT 

Operation Step 1
Distillate Collected (Mols)	50.00
Still Material Left  (Mols)	50.00
		Dist.	Still	Dist.	Still
		Mol Frac.	Mol Frac.	Mols	Mols
Acetic Acid		0.3667	0.6333	18.34	31.66
Water		0.6333	0.3667	31.66	18.34

Bottom Temperature (oC)	104.16

Operation Step 2
Distillate Collected (Mols)	40.00
Still Material Left  (Mols)	10.00
		Dist.	Still	Dist.	Still
		Mol Frac.	Mol Frac.	Mols	Mols
Acetic Acid		0.5588	0.9312	22.35	9.31
Water		0.4412	0.0688	17.65	0.69

Bottom Temperature (oC)	114.18