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4. (Multiple reactions; combustion). A fuel containing 45 mol % C₂H6 and 45 mol % C3H8 and 10 mol% N2 enters a furnace at a rate of 2000 SCMH, at 250 °C and Pgauge-5.0 atm. Humidified air (containing 10 mol% water, remainder air) is fed to the furnace in a separate stream at 20% excess. All of the fuel is burned-the product contains no C₂H6 and no C3H8. The ratio of CO₂/CO in the product stream is 15/1 (in moles/moles). a) Calculate the partial pressure of C₂H6 in the feed stream b) Calculate the molar flow rate of the fuel in the feed stream, in mol/s c) Calculate the feed rate of oxygen, in mol/s d) Calculate the feed rate of humidified air, in mol/s e) Calculate the molar flow rate of each chemical species in the product stream, in mol/s. f) Calculate the molar composition of the product stream, on both the wet and dry basis.

4. (Multiple reactions; combustion). A fuel containing 45 mol % C₂H6 and 45 mol % C3H8 and 10 mol% N2 enters a furnace at a rate of 2000 SCMH, at 250 °C and Pgauge-5.0 atm. Humidified air (containing 10 mol% water, remainder air) is fed to the furnace in a separate stream at 20% excess. All of the fuel is burned-the product contains no C₂H6 and no C3H8. The ratio of CO₂/CO in the product stream is 15/1 (in moles/moles). a) Calculate the partial pressure of C₂H6 in the feed stream b) Calculate the molar flow rate of the fuel in the feed stream, in mol/s c) Calculate the feed rate of oxygen, in mol/s d) Calculate the feed rate of humidified air, in mol/s e) Calculate the molar flow rate of each chemical species in the product stream, in mol/s. f) Calculate the molar composition of the product stream, on both the wet and dry basis.

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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4. (Multiple reactions; combustion). A fuel containing 45 mol % C₂H6 and 45 mol % C3H8 and 10 mol % N2 enters a furnace at a rate of 2000 SCMH, at 250 °C and Pgauge=5.0 atm. Humidified air (containing 10 mol% water, remainder air) is fed to the furnace in a separate stream at 20% excess. All of the fuel is burned-the product contains no C₂H6 and no C3H8. The ratio of CO₂/CO in the product stream is 15/1 (in moles/moles). a) Calculate the partial pressure of C₂H6 in the feed stream b) Calculate the molar flow rate of the fuel in the feed stream, in mol/s c) Calculate the feed rate of oxygen, in mol/s d) Calculate the feed rate of humidified air, in mol/s e) Calculate the molar flow rate of each chemical species in the product stream, in mol/s. f) Calculate the molar composition of the product stream, on both the wet and dry basis.
Transcribed Image Text:4. (Multiple reactions; combustion). A fuel containing 45 mol % C₂H6 and 45 mol % C3H8 and 10 mol % N2 enters a furnace at a rate of 2000 SCMH, at 250 °C and Pgauge=5.0 atm. Humidified air (containing 10 mol% water, remainder air) is fed to the furnace in a separate stream at 20% excess. All of the fuel is burned-the product contains no C₂H6 and no C3H8. The ratio of CO₂/CO in the product stream is 15/1 (in moles/moles). a) Calculate the partial pressure of C₂H6 in the feed stream b) Calculate the molar flow rate of the fuel in the feed stream, in mol/s c) Calculate the feed rate of oxygen, in mol/s d) Calculate the feed rate of humidified air, in mol/s e) Calculate the molar flow rate of each chemical species in the product stream, in mol/s. f) Calculate the molar composition of the product stream, on both the wet and dry basis.
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