Armfield Engineering Education
BASIC PROCESS PRINCIPLES
CEP Mkll Stirred Tank Reactors In Series - Issue 5
Ordering Specification
• A self-contained bench mounted small scale unit fitted with three continuous stirred reactors in series which are fed from two 5 litre tanks. Each reactor is fitted with a conductivity probe.
• There are two independant, variable speed feed pumps.
• A dead-time residence coil can also be attached to the exit of the last reactor in the series.
• Demonstration capabilities:
> Investigation of dynamic behaviour of stirred tank reactors in series
> Influence of flow rate and step input change
>Investigation of chemical reaction in a three tank system
> Investigation of time constant using a dead-time coil
Demonstration Capabilities
> investigation of dynamic behaviour of stirred tank reactors in series
> effect of step input change
> response to an impulse change
> influence of flow rate
> investigation of time constant using 'dead time' coil
> investigation of chemical reaction in a three tank system
Technical Description
The Armfield Stirred Tank Reactors in Series unit is designed to follow the dynamics of the perfectly mixed multi-stage process. Dynamic behaviour can be studied as can multi-stage chemical reaction. Bench mounted and self-contained, the unit requires only to be connected to a single phase electrical supply for operation.
There are three reactor vessels connected in series, each containing a propellor agitator driven by a variable speed electric motor.
Two reagent vessels and two variable speed feed pumps feed reagents into the first reactor in line.
For certain experiments the feed can be connected to the third reactor and a dead-time coil, also positioned on the vacuum formed plinth.
Each reactor and the exit port of the dead-time coil are fitted with accurate conductivity probes for monitoring the process.
Conductivity is displayed on a digital meter on the console through a selector switch and all four probes can be connected to the optional Armfield data logging accessory CEX-304IFD.
Optional Armfield Accessory
CEX-304IFD data logging accessory
requirements
Single phase electrical supply
CEP-A: 220/240v/1ph/50Hz @ 5 amps
CEP-B: 120v/1ph/60Hz @ 10amps
Shipping Specification
Volume: 0.8m³
Gross weight: 50kg
Overall dimensions
Height: 0.55m
Width: 1.0m
Depth: 0.5m
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