4. A CH4 – N2 fuel gas mixture is burned with air (80 mol% 02 and-20%) in a čóft steady-state combustion reactor to yield a mixture of oxygen, nitrogen carbon monoxide, carbon dioxide, and water. The combustion reactions taking place are: (1) CH4 + 202 → CO2 + 2H20 *complete combustion, the desired reaction CH4 +02 → Co + 2H20 *partial combustion, the side reaction 3 (2) The outlet flue gas is flowing at a rate of 100.0 mol/min and is composed of 6.0 % CO2, 1.0% CO, 3.5% O2, 75.5% N2, and 14.0 mol% H2O. A flow chart of the process is shown iclty=M below, with the following notation: CO=CO2, CO=CO, 0=0, N=N and H2O=W Fuel gas Outlet flue gas İM1 = ňm3 = ÎN3 = no3 = ńco2 3 = ńco 3 = nw 3 = Combustion Reactor Air ňo2 = İN2 = a. Calculate the molar flow rates each species in the outlet flue gas. Label on the flow chart. b. Determine the extents of reaction for complete combustion, §(1), and partial combustion, Š(2). (hint: you can solve for these by writing just 2 balances)
4. A CH4 – N2 fuel gas mixture is burned with air (80 mol% 02 and-20%) in a čóft steady-state combustion reactor to yield a mixture of oxygen, nitrogen carbon monoxide, carbon dioxide, and water. The combustion reactions taking place are: (1) CH4 + 202 → CO2 + 2H20 *complete combustion, the desired reaction CH4 +02 → Co + 2H20 *partial combustion, the side reaction 3 (2) The outlet flue gas is flowing at a rate of 100.0 mol/min and is composed of 6.0 % CO2, 1.0% CO, 3.5% O2, 75.5% N2, and 14.0 mol% H2O. A flow chart of the process is shown iclty=M below, with the following notation: CO=CO2, CO=CO, 0=0, N=N and H2O=W Fuel gas Outlet flue gas İM1 = ňm3 = ÎN3 = no3 = ńco2 3 = ńco 3 = nw 3 = Combustion Reactor Air ňo2 = İN2 = a. Calculate the molar flow rates each species in the outlet flue gas. Label on the flow chart. b. Determine the extents of reaction for complete combustion, §(1), and partial combustion, Š(2). (hint: you can solve for these by writing just 2 balances)
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. A CH4 - N2 fuel gas mixture is burned with air (80 moi% 02 and 20%N2) in a continuous
steady-state combustion reactor to yield a mixture of oxygen, nitrogen carbon monoxide,
carbon dioxide, and water. The combustion reactions taking place are:
(1)
CH4 + 202
→ C02 + 2H20 *complete combustion, the desired reaction
(2)
CH4 +02 → C0 + 2H20 *partial combustion, the side reaction
2
The outlet flue gas is flowing at a rate of 100.0 mol/min and is composed of 6.0 % CO2,
1.0% CO, 3.5% O2, 75.5% N2, and 14.0 mol% H2O. A flow chart of the process is shown
icty=M
below, with the following notation: CO=CO2, CO=CO, 02=0, N=N and H2O=W,
Fuel gas
Outlet flue gas
nm1 =
N3
no3
ńco2 3 =
ńco 3
nw 3 =
Combustion
Reactor
%3D
Air
no2 =
3
a. Calculate the molar flow rates each species in the outlet flue gas. Label on the flow chart.
b. Determine the extents of reaction for complete combustion, š1), and partial combustion,
Š(2). (hint: you can solve for these by writing just 2 balances)
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c.)Calculate the flowrate of air fed to the reactor.
d.)
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