Question
In: Mechanical Engineering
The gas phase reaction: 2A+B = 3C , is carried out in an isothermal packed bed...
The gas phase reaction: 2A+B = 3C , is carried out in an isothermal packed bed reactor. The rate is first order with respect to reactants A and B (second order overall) with the rate constant of 14 [liter2 /mole kg of catalyst sec.]. The feed is 50% A, 25 % B and 25 % inert at temperature of 500 K and P = 18 atm and a total flow rate of 20 mole/sec. The exit pressure is measured to be 6 atm. To produce 12 mole/sec of product C,
a) Write the relevant equations and using POLYMATH, give the profile of pressure and conversion along the catalyst bed till its exit, where the conditions are given above (Pexit = 6atm, Fc=12 mole/sec)
b) Calculate the amount of catalyst needed
c) Calculate the amount of catalyst needed, if the pressure drop in the reactor is ignored.
Solutions
samet mamat answered 2 years agoRelated Solutions
The gas phase reaction 2A + B →2C is carried out isothermally and isobarically. The reaction ...
The gas phase
reaction
2A + B →2C
is
carried out isothermally
and isobarically. The
reaction is first
order in A
and first order in B. The feed is equal molar in
A and B and the entering concentration of A is 0.5 mol/dm3. The
specific reaction rate is k = 4.0 dm3/mol s.
Write
the rate of
reaction, –rA,
solely as a
function of conversion,
evaluating all parameters.
The gas phase reaction 2A + B →2C is carried out isothermally and isobarically. The reaction ...
The gas phase
reaction
2A + B →2C
is
carried out isothermally
and isobarically. The
reaction is first
order in A
and first order in B. The feed is equal molar in
A and B and the entering concentration of A is 0.5 mol/dm3. The
specific reaction rate is k = 4.0 dm3/mol s.
Write
the rate of
reaction, –rA,
solely as a
function of conversion,
evaluating all parameters.
The irreversible elementary reaction 2A > B takes place in the gas phase in an isothermal...
The irreversible elementary reaction 2A > B takes place in
the gas phase in an isothermal tubular reactor. The feed is one
mole of A per one mole of C, an inert. The entering temperature and
pressure are 427°C and 10 atm, respectively. The gas constant
R = 0.08206 atm · L/mol · K.
(a) Determine the concentration of A at the entrance to the
reactor.
(b) If CA0 = 1.0 mol/L, what is the
concentration of A at 90%...
In the gas-phase reaction 2A+B ⇄ 3C + 2D, it was found that when 1.50 mole...
In the gas-phase reaction 2A+B ⇄ 3C + 2D, it was found that when
1.50 mole A, 2.00 mole B and 1.00 mole D were mixed and allowed to
cometo equilibrium at 25oC, the resulting mixture contained 1.20
mol C at a total pressure of 2.00 bar. Calculate (a) the mole
fractions of each species at equalibrium xA=_______,
xB=_______, xc=_______,
xD=________ (b) Kx =_________ (c)Kp=_______ (d)
∆rGo=_________
Please enter all answers in (a) with 3 decimals. for example,
0.4467 is...
Consider a gas phase reaction, 2A+B −↽−⇀− 3C+2D. When 1.00 mol A and 2.00 mol B,...
Consider a gas phase reaction, 2A+B −↽−⇀− 3C+2D. When 1.00 mol A
and 2.00 mol B, and 1.00 mol D were mixed and allowed to come to
equilibrium at 25◦ C and ptotal = 1.0 bar, the resulting mixture
contained 0.90 mol C. Calculate (a)partial pressures of each at
equilibrium, (b) Keq, and (c) ∆rG.
The elementary irreversible gas phase reaction A --> B + C is carried out in a...
The elementary irreversible gas phase reaction A --> B + C is
carried out in a PFR packed with catalyst. Pure A enters the
reactor at a volumetric flowrate of 20 dm3 /s at a
pressure of 10 atm and 450K.
CpA=40 J/mol.K HfA=-70 kJ/mol
(TR=273 K)
CpB=25 J/mol.K HfB=-50 kJ/mol
CpC=15 J/mol.K HfC=-40 kJ/mol
k = 0.133 exp ( E/R*[ 1/450 ? 1/T ] ) dm3 kg cat. s
with E = 31.4 kJ/mol
a) Plot the conversion and...
The elementary irreversible gas phase reaction A --> B + C is carried out in a...
The elementary irreversible gas phase reaction A --> B + C is
carried out in a PFR packed with catalyst. Pure A enters the
reactor at a volumetric flowrate of 20 dm3 /s at a
pressure of 10 atm and 450K. Consider that the heat is removed by a
heat exchanger jacketing the reactor. The flowrate of coolant
through the jacket is sufficiently high so that the ambient
exchanger temperature is constant at 50oC.
CpA=40 J/mol.K HfA=-70 kJ/mol
CpB=25 J/mol.K...
The elementary irreversible gas phase reaction A --> B + C is carried out in a...
The elementary irreversible gas phase reaction A --> B + C is
carried out in a PFR packed with catalyst. Pure A enters the
reactor at a volumetric flowrate of 20 dm3 /s at a
pressure of 10 atm and 450K. Consider that the heat is removed by a
heat exchanger jacketing the reactor. The flowrate of coolant
through the jacket is sufficiently high so that the ambient
exchanger temperature is constant at 50oC.
CpA=40 J/mol.K HfA=-70 kJ/mol
CpB=25 J/mol.K...
This is set of homogeneous and gas phase reactions: A-->B-->C . The reaction scheme is carried...
This is set of homogeneous and gas phase reactions:
A-->B-->C . The reaction scheme is carried out in a constant
volume, ideal batch reactor at constant temperature. The first
reaction is first order with respect to A with a rate constant
k1 while the second reaction is zero order with a rate
constant k2. Initially, the reactor contains only A at a
concentration CA0. a) Derive expressions for the
concentration of A, B, and C as a function of reaction...
Elementary , irreversible and isothermal gas phase reaction A+B--------- C. Reaction rate constant is 20M-1min-1 at...
Elementary , irreversible and isothermal gas phase reaction
A+B--------- C. Reaction rate constant is
20M-1min-1 at temeperature 80 degree celcius
. Feed flow rate (10L/min) to the plug flow reactor , which volume
is 80 litres, contains 2%A and 2%B and inert gas temperature of 80
degree celcius and pressure 6 bar . Calculate the conversion of
A.
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