The reaction A ------> B (1) with rate constant, k1= 0.5 min-1 at 400 K is...
The reaction A ------> B (1)
with rate constant, k1= 0.5 min-1 at 400 K is to be carried out in an isothermal PFR. However, a second reaction
A ----> C (2)
with rate constant, k2= 0.1 min-1at 400 K occurs concurrently with reaction (1). The concentration of Ain the feed is CA0= 2 mol dm-3 and the volumetric flow rate of the feed is v0= 4 dm3min-1.
(a) Determine the mean residence time, t and the reactor volume, V required for an overall XA of 90%.
(b) Determine the yield of Band the overall selectivity of Bwith respect to C
Homework Answers
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The reaction A ------> B (1)
with rate constant, k1= 0.5 min-1 at 400 K is...
A 3rd order irreversible reaction takes place in a PFR reactor. The flow entering the PFR...
A 3rd order irreversible reaction takes place in a PFR reactor. The flow entering the PFR has a concentration of A of CA0. The volumetric flow rate is a constant, v0, and the reaction rate constant is kA. Please derive a relation between the concentration of A (CA) with respect to the volume of PFR, V. Draw a diagram of 1/CA2 vs. V. PLOT THERE IS NO TABLE PROVIDED assume numbers
please solve it right . Example: Van de Vusse Reaction in an CSTR Van de Vusse liquid phase reaction is carried out...
please solve it right .
Example: Van de Vusse Reaction in an CSTR Van de Vusse liquid phase reaction is carried out in an isothermal CSTR according to the following stoichiometric equations: k3 where B is the desired product, and C and D are the undesired byproducts. The feed to the CSTR contains the reactant A only. The reaction rates are given by the following rate laws: 2 Additional information: k 0.8333 min k2 1.667 min, k3 0.1667 L min...
For a parallel reaction A goes to B with rate constant k1 and A goes to...
For a parallel reaction A goes to B with rate constant k1 and A goes to C with rate constant k2, you determine that the activation energies are 38.3 kJ/mol for k1 and 169.3 kJ/mol for k2. If the rate constants are equal at a temperature of 316 K, at what temperature (in K) will k1/k2 = 2?
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...
Pure reactant A flows into the tubular reactor (PFR) at a rate of 50 dm3/min as...
Pure reactant A flows into the tubular reactor (PFR) at a rate
of 50 dm3/min as a liquid to produce the desired product, B. And
the intermediate product B is competitively converted to the
unwanted products X and Y simultaneously. Each reaction is a
primary reaction, and the reaction rate constants are k1=0.2min-1,
k2=0.3min-1, and k3=0.1min-1. Answer the following questions.
(1) Find product B as a function of residence time (τ)
(2) What is the size of the reactor for...
Gas phase reaction, A > 3B (volume-increasing reaction), K=0.3, CA0=3mol/L, and V0=2L/min. Onl...
Gas phase reaction, A > 3B (volume-increasing reaction), K=0.3, CA0=3mol/L, and V0=2L/min. Only A is involved in the initial phase. 1. What volume do you need for secondary response, CSTR reactor, and conversion rate of 80% ? 2. What volume do you need for first response, PFTR reactor, and conversion rate of 80% ?
QUESTION 2: Design of Multiple Reactors: 30 marks B +C was a a) An elementary reaction...
QUESTION 2: Design of Multiple Reactors: 30 marks B +C was a a) An elementary reaction A reaction A B +C was carried out in a reactor system using an ideal STR followed by an ideal PER Isothermany. The rate constant is k = 0.4 min ". The volumetric flow rate is 20 L/min. The concentration of A in the feed is 5 moles/L. 1. Calculate the volume of the CSTR necessary to achieve a conversion of 50%. (7 marks)...
Question 1: Design of isothermal reactors 30 Marks The irreversible, gas-phase reaction A+B D is to be carried out...
Question 1: Design of isothermal reactors 30 Marks The irreversible, gas-phase reaction A+B D is to be carried out in an isotherma °C) plug-flow reactor (PFR) at 5.0 atm. The mole fractions of the feed streams are A 0 B 0.50, and inerts 0.30. The activation energy for the above reaction is 80 000 cal/mol. the pressure drop due to fluid friction in the reactor is so small that it can be ignored, perform the following tasks: 2T a s...
The irreversible gas phase rxn, A=> B+C is performed in an adiabatic, 800‐liter PFR with a rate...
The irreversible gas phase rxn, A=> B+C is performed in
an adiabatic, 800‐liter PFR with a rate constant, k, as
below: k=60*exp(‐5000/T) s‐1 The feed is pure A at 15 bar and 450 K
with a volumetric flow rate of 1.956 L/s. The heat of
rxnis ‐12 kJ/mol(independent of temperature), heat
capacities are CPA= 40 J/mol/K, CPB= 15 J/mol/K, and CPC
= 25 J/mol/K. The reaction is operated at constant
pressure Plot (a) FAand FBversus reactor volume (b) Temperature
versus reactor volume (c) volumetric flow...
Step 1: NO(g) + O2(g) ---> NO2(g) + O(g) rate= k1 Step 2: NO(g) + )...
Step 1: NO(g) + O2(g) ---> NO2(g) + O(g) rate= k1 Step 2: NO(g) + ) --> NO2 (g) rate = k2 suppose that k1<<k2, That is the first step is much slower than the second. Write the balanced chem equation for the overall chemical rxn Write the experimentally observable rate law for the overall reaction. (no reaction concentrations) rate=k() Express the rate constant k for the overall reaction in terms of k1, k2 and (if necessary) the rate constant...
please solve it right .
Example: Van de Vusse Reaction in an CSTR Van de Vusse liquid phase reaction is carried out in an isothermal CSTR according to the following stoichiometric equations: k3 where B is the desired product, and C and D are the undesired byproducts. The feed to the CSTR contains the reactant A only. The reaction rates are given by the following rate laws: 2 Additional information: k 0.8333 min k2 1.667 min, k3 0.1667 L min...
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...
Pure reactant A flows into the tubular reactor (PFR) at a rate
of 50 dm3/min as a liquid to produce the desired product, B. And
the intermediate product B is competitively converted to the
unwanted products X and Y simultaneously. Each reaction is a
primary reaction, and the reaction rate constants are k1=0.2min-1,
k2=0.3min-1, and k3=0.1min-1. Answer the following questions.
(1) Find product B as a function of residence time (τ)
(2) What is the size of the reactor for...
QUESTION 2: Design of Multiple Reactors: 30 marks B +C was a a) An elementary reaction A reaction A B +C was carried out in a reactor system using an ideal STR followed by an ideal PER Isothermany. The rate constant is k = 0.4 min ". The volumetric flow rate is 20 L/min. The concentration of A in the feed is 5 moles/L. 1. Calculate the volume of the CSTR necessary to achieve a conversion of 50%. (7 marks)...
Question 1: Design of isothermal reactors 30 Marks The irreversible, gas-phase reaction A+B D is to be carried out in an isotherma °C) plug-flow reactor (PFR) at 5.0 atm. The mole fractions of the feed streams are A 0 B 0.50, and inerts 0.30. The activation energy for the above reaction is 80 000 cal/mol. the pressure drop due to fluid friction in the reactor is so small that it can be ignored, perform the following tasks: 2T a s...
The irreversible gas phase rxn, A=> B+C is performed in
an adiabatic, 800‐liter PFR with a rate constant, k, as
below: k=60*exp(‐5000/T) s‐1 The feed is pure A at 15 bar and 450 K
with a volumetric flow rate of 1.956 L/s. The heat of
rxnis ‐12 kJ/mol(independent of temperature), heat
capacities are CPA= 40 J/mol/K, CPB= 15 J/mol/K, and CPC
= 25 J/mol/K. The reaction is operated at constant
pressure Plot (a) FAand FBversus reactor volume (b) Temperature
versus reactor volume (c) volumetric flow...
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