A mixture containing 42 wt% benzene (B) and 58 wt% toluene (T) is fed to a distillation column at a flow rate of 100 kg per minute. The product steam leaving the top of the column (the overhead product) contains 90 wt% benzene and 85 wt% of the total benzene fed to the column exits in this overhead product stream. Calculate the mass flow rate and mass composition of the product stream leaving the bottom of the column. Calculate the volumetric flow rate of the overhead product, assuming that it exits the distillation column as a vapour stream at 82C and 1 atm (abs). Physical Property Data (S.G.= specific gravity) from table B-1: Benzene
A mixture containing 42 wt% benzene (B) and 58 wt% toluene (T) is fed to a distillation column at a flow rate of 100 kg per minute. The product steam leaving the top of the column (the overhead product) contains 90 wt% benzene and 85 wt% of the total benzene fed to the column exits in this overhead product stream.
Calculate the mass flow rate and mass composition of the product stream leaving the bottom of the column. Calculate the volumetric flow rate of the overhead product, assuming that it exits the distillation column as a vapour stream at 82C and 1 atm (abs).
Physical Property Data (S.G.= specific gravity) from table B-1:
Benzene
S.G. = 0.879
MW = 78.11 g/mol
Toluene
S.G. = 0.866
MW = 92.13 g/mol
Water
Density = 1.00 kg/L
MW = 18.02 g/mol
R = 0.08206 L atm/mol K
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