E1. We are doing a single-stage, batch steam distillation of 1-octanol. The unit operates at 760 mm Hg. The batch steam distillation is operated with liquid water present. The distillate vapor is condensed and two immiscible liquid layers form. The feed is 90 mol% octanol and the rest is nonvolatile organic compounds. The feed is 1.0 kmol. We desire to recover 95% of the octanol.
Vapor pressure data for water are given in Problem 8.D10. For small ranges in temperature, these data can be fit to an Antoine equation form with C = 273.16. The vapor pressure equation for 1-octanol is in Problem 8.D11.
a. Find the operating temperature of the still at the beginning and end of the batch.
b. Find the amount of organics left in ...