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Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water. CH4 + O2→ HCHO + H2O CH4 + 202→ CO2 + 2H2O The feed to the reactor contains equimolar amounts of methane and oxygen. Assume a basis of 100.0 mol feed/s. a. How many degrees of freedom remain for the overall process? b. The fractional conversion of methane is 0.920 and the fractional yield of formaldehyde is 0.855 mol HCHO/mol CH4fed. What is the composition of the output stream? mol% O2 i mol% HCHO i mol% H2O i mol% CO2 mol% CH4 c. What is the selectivity (mol HCHO/mol CO2) of the process? mol HCHO/mol CO2

Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water. CH4 + O2→ HCHO + H2O CH4 + 202→ CO2 + 2H2O The feed to the reactor contains equimolar amounts of methane and oxygen. Assume a basis of 100.0 mol feed/s. a. How many degrees of freedom remain for the overall process? b. The fractional conversion of methane is 0.920 and the fractional yield of formaldehyde is 0.855 mol HCHO/mol CH4fed. What is the composition of the output stream? mol% O2 i mol% HCHO i mol% H2O i mol% CO2 mol% CH4 c. What is the selectivity (mol HCHO/mol CO2) of the process? mol HCHO/mol CO2

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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Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water. СНA + O2 — НСНО + НО CH4 + 202→ CO2 + 2H2O The feed to the reactor contains equimolar amounts of methane and oxygen. Assume a basis of 100.0 mol feed/s. a. How many degrees of freedom remain for the overall process? b. The fractional conversion of methane is 0.920 and the fractional yield of formaldehyde is 0.855 mol HCHO/mol CH4fed. What is the composition of the output stream? i mol% O2 mol% HCHO i mol% H20 mol% CO2 mol% CH4 c. What is the selectivity (mol HCHO/mol CO2) of the process? mol HCHO/mol CO2
Transcribed Image Text:Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water. СНA + O2 — НСНО + НО CH4 + 202→ CO2 + 2H2O The feed to the reactor contains equimolar amounts of methane and oxygen. Assume a basis of 100.0 mol feed/s. a. How many degrees of freedom remain for the overall process? b. The fractional conversion of methane is 0.920 and the fractional yield of formaldehyde is 0.855 mol HCHO/mol CH4fed. What is the composition of the output stream? i mol% O2 mol% HCHO i mol% H20 mol% CO2 mol% CH4 c. What is the selectivity (mol HCHO/mol CO2) of the process? mol HCHO/mol CO2
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