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Problem 2. There has been a lot of recent interest in oxygen-enhanced combustion. In this process, pure oxygen is added to air which is then fed to a furnace along with the fuel. This increases the combustion temperature, thereby reducing the amount of pollutants and increasing the concentration of CO₂ in the flue gas, making it easier to sequester the CO₂. An Orsat analysis of the flue gas from a furnace which burns methane is as follows: 11.1 mol % CO2, 5.5 mol % O2, and 83.4 mol % N₂ (dry basis). The amounts of CO, SO2, and CH4 in the flue gas are negligible. a.) How many moles of air were fed to the furnace per mole of pure O₂? b.) What was the percent excess oxygen fed to the furnace?

Problem 2. There has been a lot of recent interest in oxygen-enhanced combustion. In this process, pure oxygen is added to air which is then fed to a furnace along with the fuel. This increases the combustion temperature, thereby reducing the amount of pollutants and increasing the concentration of CO₂ in the flue gas, making it easier to sequester the CO₂. An Orsat analysis of the flue gas from a furnace which burns methane is as follows: 11.1 mol % CO2, 5.5 mol % O2, and 83.4 mol % N₂ (dry basis). The amounts of CO, SO2, and CH4 in the flue gas are negligible. a.) How many moles of air were fed to the furnace per mole of pure O₂? b.) What was the percent excess oxygen fed to the furnace?

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
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Problem 2. There has been a lot of recent interest in oxygen-enhanced combustion. In this process, pure oxygen is added to air which is then fed to a furnace along with the fuel. This increases the combustion temperature, thereby reducing the amount of pollutants and increasing the concentration of CO₂ in the flue gas, making it easier to sequester the CO₂. An Orsat analysis of the flue gas from a furnace which burns methane is as follows: 11.1 mol % CO2, 5.5 mol % O2, and 83.4 mol % N₂ (dry basis). The amounts of CO, SO₂, and CH4 in the flue gas are negligible. a.) How many moles of air were fed to the furnace per mole of pure O₂? b.) What was the percent excess oxygen fed to the furnace?
Transcribed Image Text:Problem 2. There has been a lot of recent interest in oxygen-enhanced combustion. In this process, pure oxygen is added to air which is then fed to a furnace along with the fuel. This increases the combustion temperature, thereby reducing the amount of pollutants and increasing the concentration of CO₂ in the flue gas, making it easier to sequester the CO₂. An Orsat analysis of the flue gas from a furnace which burns methane is as follows: 11.1 mol % CO2, 5.5 mol % O2, and 83.4 mol % N₂ (dry basis). The amounts of CO, SO₂, and CH4 in the flue gas are negligible. a.) How many moles of air were fed to the furnace per mole of pure O₂? b.) What was the percent excess oxygen fed to the furnace?
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