A saturated liquid feed of 200 mol/h at the boiling point containing 42 mol % heptane and 58% ethyl benzene is to be fractionated at 101.32 kPa abs to give a distillate containing 97 mol % heptane and a bottoms containing 1.1 mol % heptane. The reflux ratio used is 2.5:1. a. Calculate the mol/h distillate, mol/h bottoms, theoretical number of trays, and the feed tray number. b. Using the McCabe-Thiele method, determine the minimum reflux ratio and the minimum number of theoretical plates at total reflux for the rectification of a mixture of heptane and ethyl benzene. Equilibrium data are given below at 101.32 kPa abs pressure for the mole fraction n- heptane xH and YH. Temperature Compositions (heptane) XH Ун 0 0 0.08 0.230 0.250 0.514 0.485 0.730 0.790 0.904 1.000 1.000 K 409.3 402.6 392.6 383.8 376.0 371.5 deg C 136.1 129.4 119.4 110.6 102.8 98.3
A saturated liquid feed of 200 mol/h at the boiling point containing 42 mol % heptane and 58% ethyl benzene is to be fractionated at 101.32 kPa abs to give a distillate containing 97 mol % heptane and a bottoms containing 1.1 mol % heptane. The reflux ratio used is 2.5:1. a. Calculate the mol/h distillate, mol/h bottoms, theoretical number of trays, and the feed tray number. b. Using the McCabe-Thiele method, determine the minimum reflux ratio and the minimum number of theoretical plates at total reflux for the rectification of a mixture of heptane and ethyl benzene. Equilibrium data are given below at 101.32 kPa abs pressure for the mole fraction n- heptane xH and YH. Temperature Compositions (heptane) XH Ун 0 0 0.08 0.230 0.250 0.514 0.485 0.730 0.790 0.904 1.000 1.000 K 409.3 402.6 392.6 383.8 376.0 371.5 deg C 136.1 129.4 119.4 110.6 102.8 98.3
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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Transcribed Image Text:A saturated liquid feed of 200 mol/h at the boiling point containing 42 mol % heptane
and 58% ethyl benzene is to be fractionated at 101.32 kPa abs to give a distillate
containing 97 mol % heptane and a bottoms containing 1.1 mol % heptane. The reflux
ratio used is 2.5:1.
a. Calculate the mol/h distillate, mol/h bottoms, theoretical number of trays, and the
feed tray number.
b. Using the McCabe-Thiele method, determine the minimum reflux ratio and the
minimum number of theoretical plates at total reflux for the rectification of a mixture
of heptane and ethyl benzene.
Equilibrium data are given below at 101.32 kPa abs pressure for the mole fraction n-
heptane XH and YH.
Temperature
Compositions (heptane)
XH
YH
0
0
0.08
0.230
0.250
0.514
0.485
0.730
0.790
0.904
1.000
1.000
K
409.3
402.6
392.6
383.8
376.0
371.5
deg C
136.1
129.4
119.4
110.6
102.8
98.3
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