For CSTR, performance equation is given by:
……………………………………………………………………..(1)
Where,
V is the volume of CSTR reactor
XA is the conversion of reactant A
CA0 is the initial concentration of reactant A
For 1st order reaction, we have
………………………………………………………………….(2)
For 2nd order reaction, we have
……………………………………………………………………..(3)
Put the equation 2 in equation 1, we ge
So, we can write
…………………………………………………………………..(4)
Equation 4 represents decay of species A in the CSTR.
Put the equation 3 in equation 1, we ge
So, we can write
……………………………(5)
Equation 5 represents decay of species A in the CSTR for 2nd order reaction.
Problem 3 (5 pts) A species A is placed in a CSTR reactor where it decays...
2. (30 pts) CSTR Reactor Multiple Reactions: Consider the following set of series reactions which occurs in a CSTR reactor, with the given intrinsic reaction rate equations and kinetic constants Rxn 1: 2A → B; r1=kCA; ki = 0.5 (L/mole)-min Rxn 2: 2B → C; r = k Ce?; k2 = 0.2 (/mol)-min! a. Algebraic equation for each species: Write out the applicable algebraic equations for CA C using the space time parameter t, for these reactions occurring in a...
3. (44 pts) A CSTR reactor was used to generate the data in the table below for the aqueous reaction of A » R. Using this information, solve for or estimate the final concentration of R for the reactor schemes below. The initial concentration of A is 50 mmol/L, Cro = 0, and the molar feed rate is 100 mmol/min s. a) Two 130 L CSTR reactors b) One 200 L PFR reactor CA0 CA T (S) (mmol/L) 100 100...
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...
C) in a semibatch reactor. The feed stream 3. (10 pts.) Consider an elementary liquid-phase reaction (A+B containing B with a constant concentration (CBo) and a constant flow rate (Do) is slowly fed to a reactor containing pure A with an initial concentration (CAo). Derive three differential equations for the mole balances of A, B, and C. Please provide the steps in detail, because the credits will be given based on the detailed procedure. 1
Problem: A reaction A+ R takes place in a constant-volume isothermal CSTR. The component mass balances are: 1401 =CH-C, -kC,C, de=C-Cp+kC/CR dt where: Cai feed concentration of A (input); CRI: feed concentration of R (assumed constant); CA, CR: concentrations of A,R, respectively, in the reactor and outlet; t, k:, positive constants. a) Linearize the equations around the design steady-state (0.0...) (and put them in deviation variable form. b) Calculate the transfer function between CR and CA c) Under what conditions...
3. Steady-State CSTR Assume you have an adiabatic CSTR operating at steady-state. Within the CSTR, reactant A is being converted to product, where the rate of reaction is first order: A =kC However, the reaction is also exothermie, and the rate constant is described through the classic Arrhenius equation: k(T) = k e RT Under the set of conditions given, solve for the temperature (T) and the concentration (CA) leaving this CSTR operating under steady-state conditions. k . CA0| 3000...
3. Three CSTR's are to be used in series. The second reactor has a volume twice that of the first and third reactors. The influent flow has a concentration of 150 mg/l of species A at 100 gal/min. The rate constant for the second order reaction is 0.007 l/mg-h. What is the mean residence time and volume in each reactor if 80% of A is converted in each reactor?
we
can find the type of the reactor at problem no.(c).
3. (40 pts.) Consider the following parallel reactions that we have encountered in producing the desired product B at 300 K FF rB kiCA 0.0015 CA (1) A B (2) A C rc k 0.0001 (3) A D : rD kCA 0.008 CA The reactions are in liquid-phase. The activation energies of the reaction (1), (2), and (3) are 5x 104 kJ/mol, 4x10 kJ/mol, and 8x10 kJ/mol, respectively. We...
Problem 5. The gas-phase elementar isomerization A B is carried out at 20 atm in a fluidized CSTR (below) containing 100 kg of catalyst where 50% conversion is achieved. Po:20 atm FAo 100kg . P-20 atm X 0.5 Someone proposed to replace the CSTR with a packed bed reactor (PBR, below), the entering pressure was 20 atm and the exit pressure was found to be 5 atm Po-20 atm FAo (100kg) (1) What would be the conversionif No pres ro...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes or metric ton = 1,000 kg). The surface area, volume, and outflow from Lake Erie are given as 25.2 x 10 m² 468 x 10 m, and 182 x 10 m yr, respectively. Based on previous evaluations, the total phosphorus is removed from the lake with an apparent settling rate of 16 m/yr. a. Draw a diagram and write the mass balance equation for...