Answered: Ethanol is produced by hydration of…

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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Ethanol is produced by hydration of ethylene: C2H4 + H2O → C2H5OH Side reactions that occur when ethanol is converted to diethyl ether: 2C2H5OH → (C2H5)2O + H2O The input stream includes ethylene, steam and inert gas. Substances exiting the reactor contains 43.3% mol of ethylene, 2.5% ethanol, 0.14% ether, 9.3% inert substance, the rest is water. a. Choose the basis of the calculation of 100 moles of the total substances leaving the reactor, draw a flow diagram to find the degrees of freedom by the atomic balance method. b. Find the molar component of the input stream, the conversion of ethylene, the yield of ethanol, the selectivity of ethanol over ether c. The conversion fraction of ethylene found in b is very low. Why do people design? a reactor that consumes so little reactant? (Hint: if the reactants If the reaction stays in the reactor long enough for the ethylene to react, the main product is affected How to benefit?). What is the next step after the substances leave the reaction vessel?

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