The elementary reaction A →B + C is occurring in the vapor phase in a PBR....
The elementary reaction A →B + C is occurring in the vapor phase in a PBR. The reaction follows elementary kinetics and is irreversible. With a feed of pure A, a conversion of 55% is achieved. The pressure at the inlet of the reactor is 12 bar, and at the outlet it is 9.8 bar. If the flow rate of the feed is to be increased by 50%, estimate the new conversion and outlet pressure of the reactor.You do not need to solve the problem for a numerical answer to earn full credit.
Explaining your solution strategy is sufficient.Below is your guide and breakdown of points.
(20 points) Write the mole balances for each species and the rate law.
(10 points) What other equation(s)would you need to solve the problem?
(10 points) What are your unknowns? How can you obtain the parameters not given to you but needed for the solution?
(10 points) How does the increase in velocity impact pressure drop? Recall Ergun equation.
Homework Answers
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The elementary reaction A →B + C is occurring in the vapor phase
in a PBR....
Hi everybody,can you help me for problem 4 in the attach . Thank for help! The...
Hi everybody,can you help me for problem 4 in the attach . Thank
for help!
The elementary reversible reaction A + B 2C occurs in the liquid phase in isothermal CSTR. A stream containing equimolar amounts of A and B in a solvent enters. the reactor, and the conversion of A is measured to be 60%. The equilibrium conversion o A under the same inlet conditions is known to be 80%. The volumetric flowrate into the process is to be...
4) Consider the following irreversible elementary gas phase reaction is carried out in a PBR: A+B+20...
4) Consider the following irreversible elementary gas phase reaction is carried out in a PBR: A+B+20 [k = 1 (dm3/kg)2.s] The feed is equal molar in A and B with Fao=100 mol/s and Cao = 1 mol/dm3. Given that pressure drop parameter of the packing a = 0.0096 kg 1, and that pressure at the entrance is 10 atm. a) Set up the stoichiometric table. b) Derive correlations to quantify concentrations of each species in the process based on results...
The gas-phase reaction, A + 0.5 B -> 3P occurs in a packed bed reactor. The...
The gas-phase reaction, A + 0.5 B -> 3P occurs in a packed bed reactor. The rate law is –rA = kCA^2CB where k = 40 L^3/(g-min-mol^2). The superficial gas velocity (‘G’) is 1.8 kg/m^2-s with a density of 1.26 kg/m^3 and a viscosity of 2.2x10-5 kg/m-s. The porosity, catalyst density, and particle diameter are, respectively, 0.45, 2.3 g/cm^3, and 4 mm. The cross sectional area of the reactor is 60 cm^2. The inlet pressure and temperature are, respectively, 200...
PROBLEM 2 The elementary liquid phase irreversible reaction (A+B -> C) takes place in a 1...
PROBLEM 2 The elementary liquid phase irreversible reaction (A+B -> C) takes place in a 1 m² Mixed Flow Reactor with the equimolar mixture of A and B at the volumetric feed flow rate of 0.5 m3/min, the feed concentration of A equal to 1 mol/L, and the feed temperature of 300K. When the reaction takes place under isothermal conditions at 300K the conversion of A is 30%. When the reaction takes place adiabatically the exit temperature is 350K and...
PROBLEM 1 The elementary liquid phase irreversible reaction (A + B -> C) is to be...
PROBLEM 1 The elementary liquid phase irreversible reaction (A + B -> C) is to be carried out in a flow reactor. An equimolar feed with A and B enters the reactor at 300K at a volumetric flow rate of 2 L/s, and feed molar concentration of A equal to 0.1 kmol/m3 a. A. Calculate the conversion of A that can be achieved in one 500 Liter Mixed Flow Reactor under adiabatic conditions. b. Calculate the conversion of A that...
6 (20 pts). The irreversible elementary reaction of A+B take place in the packed bed rector...
6 (20 pts). The irreversible elementary reaction of A+B take place in the packed bed rector PRO as shown below. Unfortunately, the catalyst particle size is so small as to induce the pressurəsro across the catalyst bed (P. = 20 atm and Pout 9 atm). You want to reduce the pressure drop and thereby increase the overall conversion. One way to eliminate the pressure drop in the catalytic reactor is to use a fluidized CSTR-type reactor in which a catalyst...
The irreversible elementary gas-phase reaction A + B ) C + D is carried out isothermally...
The irreversible elementary gas-phase reaction A + B ) C + D is carried out isothermally at 305K in a packed bed reactor with 100 kg catalyst of particle size 8 mm. The entering pressure is 20 atm and the exit pressure is 2 atm. The feed rate is equal molar in A and B and the flow is in the turbulent flow regime, with FA0-10 mol/min and CA 0.4 mol/dm3. Currently 80% conversion is achieved. a) What would be...
3. (a) The elementary gas phase reaction: 2A → 3C takes place in a plug flow...
3. (a) The elementary gas phase reaction: 2A → 3C takes place in a plug flow reactor. The reactor operates isothermally at a temperature of 350 K. The inlet to the reactor is made up from A and inert material. The inlet partial pressures of A and inert material are 10 bar and 20 bar respectively. The rate constant for the reaction is given kr = 1 x 10-6 mmol s1 and the flow rate of incoming A = 2...
Question 3 (1 point) A packed bed, isothermal reactor has 40% conversion for an irreversible, zero-order,...
Question 3 (1 point) A packed bed, isothermal reactor has 40% conversion for an irreversible, zero-order, gas-phase reaction. The pressure drops from 10 bar at the inlet to 2.5 bar at the outlet. To increase conversion, the reactor length was increased by 50%, but the inlet and outlet pressures remained the same. The production rate of product (mol/h) increased by ______________. Question 3 options: a) 25% b) 0% c) 100% d) 50%
An exothermic elementary reversible isomerisation reaction of A B in liquid phase is carried out adiabatically...
An exothermic elementary reversible isomerisation reaction of A B in liquid phase is carried out adiabatically in a CSTR. Pure A is fed to the reactor at a concentration of 5 mollitre and feed rate of 500 mol/min. As a researcher you need to analyze the effect of different inlet temperature to the rate of reaction. The inlet temperature is varied at 50°C, 100°C and another two inlets temperature in between 70°C to 90°C. Perform your calculation based on energy...
Hi everybody,can you help me for problem 4 in the attach . Thank
for help!
The elementary reversible reaction A + B 2C occurs in the liquid phase in isothermal CSTR. A stream containing equimolar amounts of A and B in a solvent enters. the reactor, and the conversion of A is measured to be 60%. The equilibrium conversion o A under the same inlet conditions is known to be 80%. The volumetric flowrate into the process is to be...
4) Consider the following irreversible elementary gas phase reaction is carried out in a PBR: A+B+20 [k = 1 (dm3/kg)2.s] The feed is equal molar in A and B with Fao=100 mol/s and Cao = 1 mol/dm3. Given that pressure drop parameter of the packing a = 0.0096 kg 1, and that pressure at the entrance is 10 atm. a) Set up the stoichiometric table. b) Derive correlations to quantify concentrations of each species in the process based on results...
PROBLEM 2 The elementary liquid phase irreversible reaction (A+B -> C) takes place in a 1 m² Mixed Flow Reactor with the equimolar mixture of A and B at the volumetric feed flow rate of 0.5 m3/min, the feed concentration of A equal to 1 mol/L, and the feed temperature of 300K. When the reaction takes place under isothermal conditions at 300K the conversion of A is 30%. When the reaction takes place adiabatically the exit temperature is 350K and...
PROBLEM 1 The elementary liquid phase irreversible reaction (A + B -> C) is to be carried out in a flow reactor. An equimolar feed with A and B enters the reactor at 300K at a volumetric flow rate of 2 L/s, and feed molar concentration of A equal to 0.1 kmol/m3 a. A. Calculate the conversion of A that can be achieved in one 500 Liter Mixed Flow Reactor under adiabatic conditions. b. Calculate the conversion of A that...
6 (20 pts). The irreversible elementary reaction of A+B take place in the packed bed rector PRO as shown below. Unfortunately, the catalyst particle size is so small as to induce the pressurəsro across the catalyst bed (P. = 20 atm and Pout 9 atm). You want to reduce the pressure drop and thereby increase the overall conversion. One way to eliminate the pressure drop in the catalytic reactor is to use a fluidized CSTR-type reactor in which a catalyst...
The irreversible elementary gas-phase reaction A + B ) C + D is carried out isothermally at 305K in a packed bed reactor with 100 kg catalyst of particle size 8 mm. The entering pressure is 20 atm and the exit pressure is 2 atm. The feed rate is equal molar in A and B and the flow is in the turbulent flow regime, with FA0-10 mol/min and CA 0.4 mol/dm3. Currently 80% conversion is achieved. a) What would be...
3. (a) The elementary gas phase reaction: 2A → 3C takes place in a plug flow reactor. The reactor operates isothermally at a temperature of 350 K. The inlet to the reactor is made up from A and inert material. The inlet partial pressures of A and inert material are 10 bar and 20 bar respectively. The rate constant for the reaction is given kr = 1 x 10-6 mmol s1 and the flow rate of incoming A = 2...
An exothermic elementary reversible isomerisation reaction of A B in liquid phase is carried out adiabatically in a CSTR. Pure A is fed to the reactor at a concentration of 5 mollitre and feed rate of 500 mol/min. As a researcher you need to analyze the effect of different inlet temperature to the rate of reaction. The inlet temperature is varied at 50°C, 100°C and another two inlets temperature in between 70°C to 90°C. Perform your calculation based on energy...
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