Two PFRs are used for the zero-order reaction: A → 2B . first one with inlet...
Two PFRs are used for the zero-order reaction: A → 2B . first one with inlet flow rate of 40 mol/h and the second one is 80 mol/h
Pure A is fed to each reactor at the molar flow rates indicated. Each reactor has a volume of 10 L. Which reactor will form more of product B (i.e. higher molar flow rate of B)? [ Hint: neither reactor reaches 100% conversion]
a) first reactor b) second reactor c) not enough information to say d) same for both
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Two PFRs are used for the zero-order
reaction: A → 2B . first one with inlet...
You are given the rate equation −rA" = -kA" CA for the liquid-phase reaction A--->B. Inlet...
You are given the rate equation −rA" = -kA" CA for the liquid-phase reaction A--->B. Inlet flow rates are 100 mol/s of pure A, which has a density of 1000 kg/m3 and a molar mass 1000 g/mol. The rate constant is 1x10-6m/s. You are told the reactor has a catalyst of surface area Sg of 5 m2/g, and the catalyst density in the reactor is 25 kg/m3. a. To achieve 50% conversion in an isothermal steady-state CSTR, what is the volume required?...
The following first-order gas-phase reaction occurs in an isothermal, isobaric PFR reactor: A->2B. There is 60%...
The following first-order gas-phase reaction occurs in an isothermal, isobaric PFR reactor: A->2B. There is 60% A and 40% inert in the initial feed. If the volumetric flow rate at the outlet of the reactor is 1.3 times of the one at entrance, calculate the conversion rate of the reactor. Assume ideal gas law (PQ = NRT)
1. Acrylonitrile is produced by the reaction of propylene, ammonia, and oxygen C3H6 + NH3 +...
1. Acrylonitrile is produced by the reaction of propylene, ammonia, and oxygen C3H6 + NH3 + O2 C3H3N + 3H2O The feed contains 10 mole% propylene, 12% ammonia, and 78% air. A fractional conversion of 30% of the limiting reactant is achieved. Determine which reactant is limiting, the percentage by which each of the other reactants is in excess, and the molar flow rates of all product gas constituents for a 30% conversion of the limiting reactant, taking 100...
QUESTION 1: 20 marks 20 points It is planned to carry out the following second-order, elementary,...
QUESTION 1: 20 marks 20 points It is planned to carry out the following second-order, elementary, non- catalytic gas-phase reaction in an adiabatic CSTR: A+B_C+3D. Only A and B (no inerts) are fed to the reactor at equimolar flow rates of 150 mol/min each. The rate constant is related to the temperature by Arrhenius law as follows: k = 37.68x10^10 exp(-80000/RT) L/mol.min. The heats of formation of A, B, C and D (at 298 K) in kJ/mol are -235.3, -393.5,...
3. A liquid-liquid extraction process consists of two units, a mixer and a separator. One inlet...
3. A liquid-liquid extraction process consists of two units, a mixer and a separator. One inlet stream to the mixer consists of two components, species-A and species-B. A stream of pure species-C is fed into the mixer to drive the extraction. The mixture is then fed to a separator where it is allowed to settle into two phases which are removed in separate streams. Each outlet stream contains all three species. The goal of the process is to produce an...
please answer all the questions thank you Acetic anhydride is a clear liquid with a pungent,...
please answer all the questions
thank you
Acetic anhydride is a clear liquid with a pungent, penetrating, vinegar-like odor. The largest application of acetic anhydride is as a raw material in manufacturing cellulose acetate fibers and plastics. It is also used in the production of aspirin, acetaminophen and other pharmaceuticals manufacturing. In an intermediate step in the production of acetic anhydride, carbon monoxide and carbon dioxide are reacted with hydrogen to make methanol according to the following balanced chemical equations:...
Reaction is A-->B is carried out adiabatically in a CSTR. The reaction is second order in...
Reaction is A-->B
is carried out adiabatically in a CSTR. The reaction is second order in A. The feed, which is equal molar in water (which contains the catalyst) and A, enters the reactor at a temperature of 52 C and a total volumetric flow rate of 10 dm3/min. The concentration of A entering the reactor is 4 molar. a) What is the reactor volume to achieve 80% conversion b) What conversion can be achieved in a 1000 dm3 CSTR?...
An elementary reaction is operated in liquid phase in a perfect mixed flow (CSTR) reactor A...
An elementary reaction is operated in liquid phase in a perfect mixed flow (CSTR) reactor A 3B The feeding is composed of pure reactant A at an inlet molar flowrate of 1mol.h. The reaction advancement ? is 0.8 mol.h-1. a) Compute the partial molar flowrates of A and B at the reactor outlet b) ? (h) the space time, is defined as the ratio between the volume of the liquid mixture ver the volumetric flowrate of the feeding stream q(m.h),...
The following elementary gas phase reaction A+2B—>C+D Feed is A/B= 1/3 mol A/I =4/1 (mole basis)...
The
following elementary gas phase reaction
A+2B—>C+D
Feed is A/B= 1/3 mol A/I =4/1 (mole basis)
is to be carried out in an isothermal CSTR. Given that:
T=500C
P=5 atm
Ea=15500cal/gmol
A=1.5e4
K=A*exp^(-Ea/RT)
Qo= 100 L/s
Reactor volume= 20,000L
a) what are the exit molar flow rates? Fa, Fb, Fc, Fd,
Fi
b) what is the exit volumetric flow rate Q?
2. The following elementary irreversible gas-phase reaction: A+2B >C+D Is to carried out in an isothermal CSTR. Given that:...
P6-66 (Membrane reactor) The first-order, gas-phase, reversible reaction AB+2C is taking place in a membrane reactor....
P6-66 (Membrane reactor) The first-order, gas-phase, reversible reaction AB+2C is taking place in a membrane reactor. Pure A enters the reactor, and B diffuses out through the membrane. Unfortunately, a small amount of the reactant A also diffuses through the membrane. (a) Plot and analyze the flow rates of A, B, and C and the conversion X down the reactor, as well as the flow rates of A and B through the membrane. (b) Next, compare the conversion profiles in...
QUESTION 1: 20 marks 20 points It is planned to carry out the following second-order, elementary, non- catalytic gas-phase reaction in an adiabatic CSTR: A+B_C+3D. Only A and B (no inerts) are fed to the reactor at equimolar flow rates of 150 mol/min each. The rate constant is related to the temperature by Arrhenius law as follows: k = 37.68x10^10 exp(-80000/RT) L/mol.min. The heats of formation of A, B, C and D (at 298 K) in kJ/mol are -235.3, -393.5,...
3. A liquid-liquid extraction process consists of two units, a mixer and a separator. One inlet stream to the mixer consists of two components, species-A and species-B. A stream of pure species-C is fed into the mixer to drive the extraction. The mixture is then fed to a separator where it is allowed to settle into two phases which are removed in separate streams. Each outlet stream contains all three species. The goal of the process is to produce an...
please answer all the questions
thank you
Acetic anhydride is a clear liquid with a pungent, penetrating, vinegar-like odor. The largest application of acetic anhydride is as a raw material in manufacturing cellulose acetate fibers and plastics. It is also used in the production of aspirin, acetaminophen and other pharmaceuticals manufacturing. In an intermediate step in the production of acetic anhydride, carbon monoxide and carbon dioxide are reacted with hydrogen to make methanol according to the following balanced chemical equations:...
Reaction is A-->B
is carried out adiabatically in a CSTR. The reaction is second order in A. The feed, which is equal molar in water (which contains the catalyst) and A, enters the reactor at a temperature of 52 C and a total volumetric flow rate of 10 dm3/min. The concentration of A entering the reactor is 4 molar. a) What is the reactor volume to achieve 80% conversion b) What conversion can be achieved in a 1000 dm3 CSTR?...
An elementary reaction is operated in liquid phase in a perfect mixed flow (CSTR) reactor A 3B The feeding is composed of pure reactant A at an inlet molar flowrate of 1mol.h. The reaction advancement ? is 0.8 mol.h-1. a) Compute the partial molar flowrates of A and B at the reactor outlet b) ? (h) the space time, is defined as the ratio between the volume of the liquid mixture ver the volumetric flowrate of the feeding stream q(m.h),...
The
following elementary gas phase reaction
A+2B—>C+D
Feed is A/B= 1/3 mol A/I =4/1 (mole basis)
is to be carried out in an isothermal CSTR. Given that:
T=500C
P=5 atm
Ea=15500cal/gmol
A=1.5e4
K=A*exp^(-Ea/RT)
Qo= 100 L/s
Reactor volume= 20,000L
a) what are the exit molar flow rates? Fa, Fb, Fc, Fd,
Fi
b) what is the exit volumetric flow rate Q?
2. The following elementary irreversible gas-phase reaction: A+2B >C+D Is to carried out in an isothermal CSTR. Given that:...
P6-66 (Membrane reactor) The first-order, gas-phase, reversible reaction AB+2C is taking place in a membrane reactor. Pure A enters the reactor, and B diffuses out through the membrane. Unfortunately, a small amount of the reactant A also diffuses through the membrane. (a) Plot and analyze the flow rates of A, B, and C and the conversion X down the reactor, as well as the flow rates of A and B through the membrane. (b) Next, compare the conversion profiles in...
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