Question

2. A mixture of 60 wt% benzene, 35% toluene, and 5% naphthalene is being distilled. The distillate product should be 99.5 wt% benzene. Also, 99% of benzene fed should be recovered in the distillate, Determine/calculate: a. Distillate and bottom product flow rates (D and B) per 1 kg of feed b. compositions of distillate and bottom product c. fraction of toluene fed that is recovered in the bottom product

Answer 1

(a) Distillate (D) = 0.597 kg

Bottom product (B) = 0.403 kg

(b) Compositions of distillate product:

Benzene = 0.995

Toluene = 0.05

Compositions of bottom product:

Benzene = 0.0149

Naphthalene = 0.1241

Toluene = 0.8610

(c) Fraction of toluene fed that is recovered in the bottom product = 99.14%

Step-by-step explanation:

See the attached file for the calculation