**F1.** Calculate the expected overall efficiency for the column in Problem 10.D9. Viscosities are available in *Perry’s Chemical Engineers Handbook* (7th Edition, p. 2–322 and 2–323). Note that O’Connell’s correlation uses the liquid viscosity of the same composition as the feed at the average temperature of the column. Estimation of the viscosity of a mixture is shown in Eq. (10-7a).

**F2.** Estimate the overall plate efficiency for Problem 10.D15. See Problem 10.F1 for hints.

**F3.*** We are separating an ethanol-water mixture in a column operating at atmospheric pressure with a total condenser and a partial reboiler. Constant molal overflow (CMO) can be assumed, and the reflux is a saturated liquid. The feed rate is ...

Start Free Trial

No credit card required