Page 31 - PIGNAT catalogue 2020 GB_092020

REACTION - SYNTHESIS

RAP/4000 CONTINUOUS REACTORS

➢ Study and comparison of four continuous reactors from two different
experiments:
Monitor the dispersion (NaCl) in water for determination residence time
The saponification of ethyl acetate by soda

Comparison of four different reactors with the same volume
One perfectly stirred reactor
A cascade of two perfectly stirred reactors
One plug-flow reactor
One tubular reactor

Hydrodynamic study of the reactors by the residence time distribution method
Determine residence times
Compare theoretical and experimental results

Determine the chemical conversion rate by conductivity measurement
Materials balance, reaction yield
Compare the efficiency of the different reactors

General specifications injection.
• Two diaphragm pumps, variable flow rate. - 1 coil reactor, empty.
www.pignat.com
www.pignat.com • 2 flowmeters.
- 1 piston reactor, packed.

Instrumentation
• Two glass vessels for constant feed by
overflow.
• 2 conductivity probes.

• 2 temperature probes Pt100Ω.
• Variable rate Stirrer, SS stirring shaft with
SS four blades helix.
Option
• 3 stirred glass reactors, pipe overflow,
Temperature influence conductivity and temperature, drain valve
Replacement of the single jacket reactors by and tracing injection.
double jacket reactors with control temperature
fluid circulation. - Perfectly stirred reaction vessel
- 2 perfectly stirred cascade vessels
Supervision - Acquisition des données
• 2 plug glass reactors, conductivity and 100 - 240 V Demineralized
1ϕ - 50/60Hz water
temperature measurement and tracer
Dim: 175 x 70 x 235 cm - 150 kg

RAP/2000

The reactors are fed continuously at a constant rate through the device.

The selection of the reactor depends on the valves.

Stirring ensures the homogeneity of the reaction medium.

Conductivity sensors are used to monitor the concentration tracer over time and
to determine the distribution of the residence time.

The tracer is injected using a syringe.

The measurement of the conductivity of the reaction medium allows to follow the
evolution of the saponification and to calculate the rate of conversion of ethyl
acetate.
Version avec 2 réacteurs
The feeding in of deionized water reactors allows their hydrodynamic study. Dim : 124 x 70 x 235 cm - 100 kg

Chemical engineering & unit operations
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