Answered: Formaldehyde (CH2O) is produced…

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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Formaldehyde (CH2O) is produced industrially by !he catalytic oxidation of methanol
(CH3OH)according to the following reaction:
CH3OH + ½ O2 → CH2O + H2O
Unfortunately, under the conditions used to produce formaldehyde at a profitable
rate, a significant portion of the formaldehyde reacts with oxygen to produce CO
and H2O, that is;
CH2O + ½ O2 → CO + H2O
Assume that methanol and twice the Stoichiometry amount of air needed for complete
conversion of the CH3OH to the desired products (CH2O and H2O) are fed to the
reactor. Also assume that 90% conversion of the methanol results, and than a 75%
yield of formaldehyde occurs based on the theoretical production of CH2O by
Reaction 1. Determine the composition of the product gas leaving the reactor.

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