The analysis of a coal indicates 75wt% C, 17% H, 2% S, the balance noncombustible ash....
The analysis of a coal indicates 75wt% C, 17% H, 2% S, the balance noncombustible ash. The coal is burned at a rate of 5000 kg/h, and the feed rate of air to the furnace is 50 kmol/min. All of the ash and 6% of the carbon in the fuel leave the furnace as a molten slag; the remainder of the carbon leaves in the stack gas as CO and CO2; the hydrogen in the coal is oxidized to water, and the sulfur emerges as SO2. The selectivity of CO2 to CO production is 10:1. a) Calculate the percent excess air fed to the reactor. b). Calculate the mole fractions of the gaseous pollutants – CO and SO2 – in the stack gas.
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The analysis of a coal indicates 75wt% C, 17% H, 2% S, the
balance noncombustible ash....
A bituminous coal is burned with air in a boiler furnace. The coal is fed at a rate of 40000 kg/h and has an ultimate analysis of 76wt% C, 5wt% H, 8wt% O, negligible amounts of N and S, and 11wt% non-...
A bituminous coal is burned with air in a boiler furnace. The
coal is fed at a rate of 40000 kg/h and has an ultimate analysis of
76wt% C, 5wt% H, 8wt% O, negligible amounts of N and S, and 11wt%
non-combustible ash. Air enters a preheater at 30 °C and 1 atm with
a relative humidity of 30%, exchanges heat with the hot flue gas
leaving the furnace and air enters the furnace at temperature Ta
(°C). The flue...
Coke can be converted into Co-a fuel gas-in the reaction CO2(g) + C(s) - 200(g) A...
Coke can be converted into Co-a fuel gas-in the reaction CO2(g) + C(s) - 200(g) A coke that contains 84.0% carbon by mass and the balance noncombustible ash is fed to a reactor with a stoichiometric amount of CO2- The coke is fed at 77.0°F, and the CO2 enters at 300.0°F, heat is transferred to the reactor in the amount of 5259 Btu/Ibm coke fed. The gaseous products and the solid reactor effluent (the ash and unburned carbon) leave the...
1 - Mass balance with reaction a) A certain amount of Pennsylvania coal, in a final...
1 - Mass balance
with reaction
a) A certain amount of Pennsylvania coal, in a final analysis
(by mass), has 84.36% C, 89% H2, 4.40% O2, 0.63% N2, 0.89% S and
7.83% ash (non-combustible). This coal is burned with a theoretical
amount of air. Disregarding the ash content, determine the molar
fractions of the products.
b) The antimony is obtained by heating the tibite
(Sb2S3) sprayed with iron shavings, removing
the molten antimony from the bottom of the reaction tank:...
1. Match the definitions at the left with the most appropriate term on the right. NOTE:...
1. Match the definitions at the left with the most appropriate term on the right. NOTE: A given term in the right-hand column may or may not be used more than once. _An example of a secondary air pollutant A. PM2.5 Estimated number of children worldwide under 5 years of age B. PM10 that are killed by air pollution each year Geographic region where about two-thirds of all air pollution C. Carbon monoxide (CO) related deaths occur D. Nitrogen dioxide...
I need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71 Documents Pearson Updad Assgrmerti Eimiting....
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
Methane gas is burned with 30 percent excess air. This fuel enters a steady- flow combustor at 0.8 atm and 25oC and is mixed with the air. The products of combustion leave this reacto...
Methane gas is burned with 30 percent excess air. This fuel enters a steady- flow combustor at 0.8 atm and 25oC and is mixed with the air. The products of combustion leave this reactor at 0.8 atm and 1600 K. Determine the equilibrium composition of the products of combustion and the amount of heat released by this combustion in kJ/kmol methane. Use data from the tables CH 25°C CO2, H3O chamber NO. O2 N2 1600 K 30% excess air 25°C...
A bituminous coal is burned with air in a boiler furnace. The
coal is fed at a rate of 40000 kg/h and has an ultimate analysis of
76wt% C, 5wt% H, 8wt% O, negligible amounts of N and S, and 11wt%
non-combustible ash. Air enters a preheater at 30 °C and 1 atm with
a relative humidity of 30%, exchanges heat with the hot flue gas
leaving the furnace and air enters the furnace at temperature Ta
(°C). The flue...
Coke can be converted into Co-a fuel gas-in the reaction CO2(g) + C(s) - 200(g) A coke that contains 84.0% carbon by mass and the balance noncombustible ash is fed to a reactor with a stoichiometric amount of CO2- The coke is fed at 77.0°F, and the CO2 enters at 300.0°F, heat is transferred to the reactor in the amount of 5259 Btu/Ibm coke fed. The gaseous products and the solid reactor effluent (the ash and unburned carbon) leave the...
1 - Mass balance
with reaction
a) A certain amount of Pennsylvania coal, in a final analysis
(by mass), has 84.36% C, 89% H2, 4.40% O2, 0.63% N2, 0.89% S and
7.83% ash (non-combustible). This coal is burned with a theoretical
amount of air. Disregarding the ash content, determine the molar
fractions of the products.
b) The antimony is obtained by heating the tibite
(Sb2S3) sprayed with iron shavings, removing
the molten antimony from the bottom of the reaction tank:...
1. Match the definitions at the left with the most appropriate term on the right. NOTE: A given term in the right-hand column may or may not be used more than once. _An example of a secondary air pollutant A. PM2.5 Estimated number of children worldwide under 5 years of age B. PM10 that are killed by air pollution each year Geographic region where about two-thirds of all air pollution C. Carbon monoxide (CO) related deaths occur D. Nitrogen dioxide...
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
Methane gas is burned with 30 percent excess air. This fuel enters a steady- flow combustor at 0.8 atm and 25oC and is mixed with the air. The products of combustion leave this reactor at 0.8 atm and 1600 K. Determine the equilibrium composition of the products of combustion and the amount of heat released by this combustion in kJ/kmol methane. Use data from the tables CH 25°C CO2, H3O chamber NO. O2 N2 1600 K 30% excess air 25°C...
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