An inlet water solution of 800kg/h containing 12.0 wt% acetone is extracted with the solvent trichloroethane containing 0.5 wt% acetone in a countercurrent tray tower at 250C. The trichloroethane is essentially immiscible with water up to a concentration of acetone in water of 27 wt %. The exit concentration in the water stream is set at 1.0 wt% acetone. The equilibrium data is tabulated in Table 1. Table 1: The equilibrium data X 0.0120 0.0294 0.0462 0.0571 0.0833 0.1081 0.1316 y 0.0196 0.0467 0.0741 0.0909 0.1304 0.1666 0.2000 a) Determine the minimum solvent rate needed for this extraction. b) Using 1.5 time the minimum rate, graphically determine the number of theoretical steps needed in the process. c) Calculate theoretical step using analytical equation d) For a packed tower with this sytem, the height of the transfer unit HoL has been estimated as 0.9m. calculate the number of transfer units NoL and the tower height in this process.
An inlet water solution of 800kg/h containing 12.0 wt% acetone is extracted with the solvent trichloroethane containing 0.5 wt% acetone in a countercurrent tray tower at 250C. The trichloroethane is essentially immiscible with water up to a concentration of acetone in water of 27 wt %. The exit concentration in the water stream is set at 1.0 wt% acetone. The equilibrium data is tabulated in Table 1. Table 1: The equilibrium data X 0.0120 0.0294 0.0462 0.0571 0.0833 0.1081 0.1316 y 0.0196 0.0467 0.0741 0.0909 0.1304 0.1666 0.2000 a) Determine the minimum solvent rate needed for this extraction. b) Using 1.5 time the minimum rate, graphically determine the number of theoretical steps needed in the process. c) Calculate theoretical step using analytical equation d) For a packed tower with this sytem, the height of the transfer unit HoL has been estimated as 0.9m. calculate the number of transfer units NoL and the tower height in this process.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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