n-butane burns with 15% excess air, both streams enter at 25 ° C. The gas burns...
n-butane burns with 15% excess air, both streams enter at 25 °
C. The gas burns completely producing 90 mol of CO2 / 10mol of CO.
The combustion gas comes out at 400ºC and 1 atm. Taking as a basis
of calculation 1000 moles / h of the gas that feeds the oven:
1. Draw the process diagram
2. Calculate the air feed rate and the composition of the flue
gases.
3. Fill the enthalpy table in / out of the process. Clearly specify
the reference status.
4. Calculate the amount of heat given up in the reactor (kW).
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n-butane burns with 15% excess air, both streams enter at 25 °
C. The gas burns...
n-butane burns with 15% excess air, both streams enter at 25°C. The gas burns completely producing...
n-butane burns with 15% excess air, both streams enter at 25°C. The gas burns completely producing 90 mol of CO2 / 10mol of CO. The combustion gas comes out at 400ºC and 1 atm. Taking as a basis of calculation 1000 moles/h of the gas that feeds the oven: Calculate the air supply speed and the composition of the combustion gases.
The heater in a house burns natural gas with x% excess air according to the reaction: CH4 2 02>CO2 2 H2O The flue gas leaves the burner at Tout. The air and the natural gas (CH4) enter the burner...
The heater in a house burns natural gas with x% excess air according to the reaction: CH4 2 02>CO2 2 H2O The flue gas leaves the burner at Tout. The air and the natural gas (CH4) enter the burner Prepare a spreasheet for this system using a basis of one mole of methane feed to deter at standard conditons of 25°C and 1 atm pressure. mine: a) The standard heat for the combustion for the reaction above, b) The required...
A fuel gas consists of 75% butane (C4H10), 10% propane (C3H8) and 15% butene (C4H8) by...
A fuel gas consists of 75% butane (C4H10), 10% propane (C3H8) and 15% butene (C4H8) by volume. It is to be fed to the combustion chamber in 10% excess air at 25ºC, where it is completely burnt to carbon dioxide and water. The flue gases produced are to be used to generate 5 bar steam from water at 90ºC. net calorific value (MJm-3) at 25oC Butane (C4H10) = 111.7MJm-3, Butene (C4H8) = 105.2 MJm-3. Propane (C3H8) = 85.8 MJm-3. air...
Q4/ Toluene gas (CH3) enters a continuous adiabatic heat exchanger at (35°C) and (300 KPa) and...
Q4/ Toluene gas (CH3) enters a continuous adiabatic heat exchanger at (35°C) and (300 KPa) and exits at (260°C). Superheated steam at (400°C) and (5 bar) enters to exchanger flowing counter currently to a Toluene and exits as a saturated liquid at the same pressure. 1- If (150 mol) of Toluene is fed, draw and label a process flow chart. 2- Calculate the values of inlet-outlet enthalpies. 3- Calculate the volumetric feed ratio of the two streams (m' steam fed/mºtoluene...
Methane gas is burned with 30 percent excess air. This fuel enters a steady-flow combustor at 0.9 atm and 25'C...
Methane gas is burned with 30 percent excess air. This fuel enters a steady-flow combustor at 0.9 atm and 25'C and is mixed with the air. The products of combustion leave this reactor at 0.9 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. CH4 Combustion 25℃ CO, HO 1600 K 30%acess 25 C The amount of carbon dioxide...
Formul Question 2 (50 points): Propane gas and burns with 20% excess air entering (molar C, Hs) at 25 C.I atm enters a reactor operating at steady state at 25 C l atm of the carbon entering with...
Formul Question 2 (50 points): Propane gas and burns with 20% excess air entering (molar C, Hs) at 25 C.I atm enters a reactor operating at steady state at 25 C l atm of the carbon entering with the fuel, 94% s) appears in the products at CO2 and the rest as CO. Heat transfer from the reactor occurs te of 1.4 x 10° kJ per kmol or propane. Use your ideal gas tables to answer this question. ite the...
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...
4. [30 marks] 100 mol/min of CO at 300 °C are burned with 100 % excess...
4. [30 marks] 100 mol/min of CO at 300 °C are burned with 100 % excess Oz which is at 100 °C. The exit gases leave at 400 °C. a) [10 pts) Calculate the molar flowrate of individual components in the feed and exit streams, assuming that there is no unburned CO in the exit stream. Follow the systematic procedure to solve this question. b) [10 pts) Calculate the standard heat of reaction using the standard heats of formation of...
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...
The heater in a house burns natural gas with x% excess air according to the reaction: CH4 2 02>CO2 2 H2O The flue gas leaves the burner at Tout. The air and the natural gas (CH4) enter the burner Prepare a spreasheet for this system using a basis of one mole of methane feed to deter at standard conditons of 25°C and 1 atm pressure. mine: a) The standard heat for the combustion for the reaction above, b) The required...
Q4/ Toluene gas (CH3) enters a continuous adiabatic heat exchanger at (35°C) and (300 KPa) and exits at (260°C). Superheated steam at (400°C) and (5 bar) enters to exchanger flowing counter currently to a Toluene and exits as a saturated liquid at the same pressure. 1- If (150 mol) of Toluene is fed, draw and label a process flow chart. 2- Calculate the values of inlet-outlet enthalpies. 3- Calculate the volumetric feed ratio of the two streams (m' steam fed/mºtoluene...
Methane gas is burned with 30 percent excess air. This fuel enters a steady-flow combustor at 0.9 atm and 25'C and is mixed with the air. The products of combustion leave this reactor at 0.9 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. CH4 Combustion 25℃ CO, HO 1600 K 30%acess 25 C The amount of carbon dioxide...
Formul Question 2 (50 points): Propane gas and burns with 20% excess air entering (molar C, Hs) at 25 C.I atm enters a reactor operating at steady state at 25 C l atm of the carbon entering with the fuel, 94% s) appears in the products at CO2 and the rest as CO. Heat transfer from the reactor occurs te of 1.4 x 10° kJ per kmol or propane. Use your ideal gas tables to answer this question. ite the...
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...
4. [30 marks] 100 mol/min of CO at 300 °C are burned with 100 % excess Oz which is at 100 °C. The exit gases leave at 400 °C. a) [10 pts) Calculate the molar flowrate of individual components in the feed and exit streams, assuming that there is no unburned CO in the exit stream. Follow the systematic procedure to solve this question. b) [10 pts) Calculate the standard heat of reaction using the standard heats of formation of...
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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