Answered: It is intended to absorb benzene from…

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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Question

It is intended to absorb benzene from an oil stream through a tower in contact with steam. The inlet oil stream contains 8% moles of benzene and the steam stream is free of benzene. It is desired to recover 80% of benzene using steam at a rate 1.4 times the minimum flow. Clean oil (benzene free, Ls) flows at a rate of 6.94 mols/L/. Determine the amount in moles of steam per second required if:

A)A tower with countercurrent supply is used (R= 1.57 lbmol/s)

B)A tower with parallel feed is used (R=11.46 lbmol/sec )

x (mol of benzene/mol of oil) y (mol of benzene/mol of steam)

The Table is attached

x (mol de benzeno/mol de óleo)
y (mol de benzeno/mol de vapor)
0,02
0,07
0,04
0,14
0,06
0,22
0,08
0,31
0,10
0,405
0,12
0,515
0,14
0,65

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