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Methanol vapor can be converted into formaldehyde by the following reaction scheme: CH3OH + 0.5 O2 -> HCHO + H2O CH3OH -> HCHO + H2 The fresh feed to the process was 0.5 kmol / hr of O2 and an excess methanol. All of the O2 reacts in the reactor. Formaldehyde and water are removed from the product stream first, after which H2 is removed from the recycled methanol. The recycle flow rate of methanol was 1 kmol/hr. The ratio of methanol reacting by decomposition to that by oxidation was 3. Calculate the per pass conversion of methanol in the reactor and the fresh feed rate of methanol.

Methanol vapor can be converted into formaldehyde by the following reaction scheme: CH3OH + 0.5 O2 -> HCHO + H2O CH3OH -> HCHO + H2 The fresh feed to the process was 0.5 kmol / hr of O2 and an excess methanol. All of the O2 reacts in the reactor. Formaldehyde and water are removed from the product stream first, after which H2 is removed from the recycled methanol. The recycle flow rate of methanol was 1 kmol/hr. The ratio of methanol reacting by decomposition to that by oxidation was 3. Calculate the per pass conversion of methanol in the reactor and the fresh feed rate of methanol.

Introduction to Chemical Engineering Thermodynamics
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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Methanol vapor can be converted into formaldehyde by the following reaction scheme:

CH3OH + 0.5 O2 -> HCHO + H2O

CH3OH -> HCHO + H2

The fresh feed to the process was 0.5 kmol / hr of O2 and an excess methanol. All of the O2 reacts in the reactor. Formaldehyde and water are removed from the product stream first, after which H2 is removed from the recycled methanol. The recycle flow rate of methanol was 1 kmol/hr. The ratio of methanol reacting by decomposition to that by oxidation was 3.

Calculate the per pass conversion of methanol in the reactor and the fresh feed rate of methanol.

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