PIGNAT Continuous Reactors - RAP4000

PIGNAT Continuous Reactors – RAP4000

PIGNAT

Product Code: RAP4000

Description

Chemical engineering refers especially to chemical reaction engineering. Indeed, chemical reaction, catalyzed or not, are at the heart of all industrial syntheses.  Study of a chemical reaction, in a perfectly‐stirred reactor, permits the operator to understand the influence of the different parameters in the optimization of the chemical synthesis with a view to its industrialization.

Features:

  • Study and compare four continuous reactors from two different experiments:
    • Monitoring the dispersion (NaCl) in water to determine the residence time
    • The saponification of ethyl acetate by soda
  • Contains four different reactors with the same volume (0.8L):
    • 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 (RTD) 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

Proposed Experiments:

  • Determine the residence time distribution (RTD):
    • Inject a coloured tracer and monitor conductivity.
    • Use the experimental conductivity = f (time) graphs to determine the residence time for each reactor.
    • Compare the reactors.
  • Saponification of ethyl acetate with sodium hydroxide.
    • Calibration of conductivity sensors for sodium hydroxide assay.
    • Monitor the reaction conductivity and determine the sodium hydroxide conversion rate.

Technical description:

  1. 60 L feeding polyethylene tanks 60 L with draining valve.
  2. Peristaltic pump with two heads, fix speed motor.
  3. Two glass vessels ND 50 for constant feed by overflow.
  4. Two flow rate meters with a setting valve.
  5. Two five-way selecting valve.
  6. Stirring motor, 50 to 2000 rpm. PTFE stirring pipe, Ø 6, length: 400, with four pales helix: Ø 40.
  7. 1 L glass reactors, ND 100 with PVC cover, overflow connection, measurement well, conductimetric probe, draining valve and tracing injection.
  8. Two 0.5 L glass reactors, ND 100 with PVC cover, overflow connection, measurement well, conductimetric probe, draining valve and tracing injection.
  9. Glass piston reactor, 1 L, ND 50, length: 1000 with overflow bell-jar, conductimetric probe, purging valve, stainless steel supporting grate, glass ball packing: Ø 3, draining valve and tracing injection.
  10. 1 L glass coil reactor, ND 15 with overflow bell-jar, conductimetric probe, purging valve, draining valve and tracing injection.
  11. 60 L polyethylene tank with draining valve.

General Specifications

  • Two diaphragm pumps, variable flow rate.
  • Two glass vessels for constant feed by overflow.
  • Variable rate Stirrer, SS stirring shaft with SS four blades helix.
  • 3 stirred glass reactors, pipe overflow, conductivity and temperature, drain valve and tracing injection.

– 0,8 L perfectly stirred reaction vessel

– 2 x 0,4 L perfectly stirred cascade vessels

  • 2 plug glass reactors, 0,8 L, conductivity and temperature measurement and tracer injection.

– 1 reactor coil, empty.

– 1 reactor piston, packed.

 Instrumentation

  • 2 flowmeters.
  • 2 conductivity probes.
  • 2 temperature probes Pt100Ω.

Dim : 175 x 70 x 235 cm – 150 kg
SS framework 40 x 40mm

For a complete product data sheet and a list of reference sites please call 1-877-967-2726.