|
Semicontinuous cooled
reactor Calculates the evolution of the concentrations
and temperature in the reactor (3 ODE's). |
|
|
| tf, h |
min |
Final reaction time and step size
(T). • |
| k0, EA |
M−1 min−1
kJ/mol |
Preexponential factor, activation energy. |
| V0 |
L |
Initial volume in reactor. |
| CBe, Qe,
Te |
M
L/min
K |
Feed (B) flow, concentration and
temperature. |
| cp, ΔHR |
kJ/L-K kJ/mol |
Specific heat of reaction mixture and
reaction enthalpy. |
| Text, U, A |
K kJ/m²-min-K m² |
External temperature, heat transfer coefficient and
transfer area. • |
| nA0, nB0,
T0 |
mol K |
Initial values: contents of A and B, and
temperature. |
| Plot |
temperature
conversion |
Plot temperature or conversion,
with nA, B. |
| Show values |
|
Shows the coordinates of the graph. |
A product P is produced in a semicontinuous,
well stirred, polytropic reactor, by the reaction
A + B → P. The reactor is
initially loaded with an aqueous solution of A, with volume
(V0) 300 L, at a concentration
CA0 = 1 M and temperature
T0 = 313 K; an aqueous solution of B
is continuously fed with concentration
CB0 = 1 M, flow
Qe0 = 5 L/min and temperature
Te = 298 K. There is no outflow.
The specific heat of the mixture is near the one for water,
cp = 4.18 kJ/L-K. The cooler (…)
has an area of A = 0.6283 m² with water at
(Text) 298 K with (…) a very high flow.
The overall heat transfer coefficient between the reaction mixture and cooling
water is U = 30 kJ/m²-min-K. The reactor walls are
insulated. (See remaining parameters above.)
The evolution of A and B, and T
or conversion of A are calculated vs. time. (A numerical,
Runge-Kutta method is used.)
Suggestions Vary several system parameters. |
|
|
| References: |
Plate: SCReactor050501 |
• Lemos,
Francisco, José M. Lopes, Fernando
Ramôa Ribeiro, 2002,
«Reactores Químicos»
(Chemical reactors), IST Press, Lisboa (Pt),
ISBN ¬ 9728469098,
Problem C.1.3 (p 253
...). |
