Stirred Tanks in Series | ReaktiLabX – 09
The Stirred Tanks in Series ReaktiLabX – 09 connects three identical glass stirred tank reactors in series for higher conversion. This Stirred Tanks in Series system uses variable speed stirrers and stainless steel chambered bottoms as heat exchangers across all three reactors. Intermediate delivery pumps transfer reactants between reactors, with a combined conductivity and temperature sensor tracking conversion at each stage. It requires the Service Unit for Chemical Reactors for pump, tank, and heating circuit support.
The Stirred Tanks in Series ReaktiLabX – 09 connects continuous stirred tank reactors in series, providing higher conversion compared to a single stirred tank reactor. This Stirred Tanks in Series system allows variable process control, since each individual reactor’s temperature and retention duration may be customized. It mounts on the supply unit, secured in place by two pins, using quick-release connections.
Product Overview
Stirred tanks in series are continuous stirred tank reactors that are connected in series, as the name implies. Compared to a single stirred tank reactor, they provide a higher conversion. Stirred tanks in series allow for variable process control because each individual reactor’s temperature and retention duration may be customized.
This equipment series that enables research with various reactor types includes the Stirred Tanks in Series ReaktiLabX – 09. The operation and behavior of stirred tanks in series can be examined in conjunction with the supply unit CRE-3305. The supply unit CRE-3305 is equipped with a heating water circuit, all required connections, pumps, reactant tanks, and a product tank. The supply unit is used to mount the reactor, which is secured in place by two pins. The reactor may be quickly and easily connected to the supply unit using quick-release connections.
Two pumps from the supply unit transport the reactants into the first reactor during continuous three-stage operation. By ensuring a homogenous mixture, a stirrer extends the amount of time that the reactants are in direct contact. The reactants react to create the product. The mixture of product and unconverted reactants is transferred into two more, similar reactors one after the other after leaving the reactor by an overflow. The supply unit’s additional two peristaltic pumps are used for the intermediate delivery. The transfer takes place in a tank of the supply unit after the third reactor.
By varying the speed of the pumps on the supply unit, the retention duration of the reactants in the reactor can be changed. By measuring the conductivity, the conversions in each reactor are identified. Included is a conductivity/temperature combination sensor. On the supply unit, conductivity and temperature are digitally shown.
Stirred Tanks in Series ReaktiLabX – 09 — Technical Specifications
| Specification | Detail |
|---|---|
| Connection | For connection to service unit ReaktiLabX 07 |
| Reactors | 3 identical stirred tank reactors made of glass connected in series |
| Chambered Bottom | Made of stainless steel, as heat exchanger for connection to ReaktiLabX 07 |
| Inter-Reactor Delivery | Via 2 peristaltic pumps of the service unit ReaktiLabX 07 |
| Reactor Capacity | Small reactor capacity for less consumption of chemicals |
| Sensor | For measuring the conductivity and temperature via ReaktiLabX 07 |
| Display | Of conductivity and temperature via ReaktiLabX 07 |
| Temperature Control | In the reactor via ReaktiLabX 7 |
Technical Data
3 Reactors
| Parameter | Value |
|---|---|
| Size | DN 100 |
| Height | each 250mm |
| Reactor capacity | approx. 1950mL each |
| Material | Boro 3.3 glass |
Stirrer
| Parameter | Value |
|---|---|
| Speed | 300min⁻¹ |
| Drive | Variable speed, brushless geared motor |
Required
| Parameter | Value |
|---|---|
| Accessory | Service Unit for Chemical Reactors ReaktiLabX 09 |
Key Features
- Reactors: 3 identical, DN 100, 250mm height each, boro 3.3 glass, approx. 1950mL capacity each
- Series Connection: three reactors connected in series for higher conversion than a single stirred tank
- Stirrer: variable speed, brushless geared motor, 300min⁻¹ speed
- Chambered Bottom: stainless steel, functions as heat exchanger
- Inter-Reactor Delivery: 2 additional peristaltic pumps for intermediate transfer between reactors
- Small Reactor Capacity: reduces chemical consumption
- Sensor: combined conductivity and temperature measurement, digitally displayed
- Customizable Process Control: temperature and retention duration individually adjustable per reactor, central to this Stirred Tanks in Series system
Experiments
- Fundamentals of a saponification reaction
- Conversion in each reactor depending on: retention time, temperature, concentration
Construction and Design
The Stirred Tanks in Series ReaktiLabX – 09 consists of 3 identical stirred tank reactors, each DN 100 in size, 250mm in height, made of boro 3.3 glass, with a capacity of approximately 1950mL each. Each reactor is fitted with a stirrer driven by a variable speed brushless geared motor at 300min⁻¹, and a chambered bottom made of stainless steel functioning as a heat exchanger. Reactors are mounted on the supply unit, secured by two pins, and connected via quick-release connections. Two pumps transport reactants into the first reactor, with the product and unconverted reactants transferred through an overflow into the second and third reactors in turn, using two additional peristaltic pumps for intermediate delivery. A combined conductivity and temperature sensor identifies conversion in each reactor, with values digitally displayed on the supply unit.
Required Accessories
- Service Unit for Chemical Reactors ReaktiLabX 07
Q: What is the Stirred Tanks in Series ReaktiLabX – 09 used for?
A: It is used to study the operation and behavior of stirred tanks connected in series, examining conversion, saponification reaction fundamentals, and the effects of retention time, temperature, and concentration.
Q: How many reactors are connected in series?
A: Three identical stirred tank reactors, each DN 100 in size with a capacity of approximately 1950mL, are connected in series.
Q: Why use stirred tanks in series instead of a single reactor?
A: Stirred tanks in series provide higher conversion compared to a single stirred tank reactor and allow variable process control, since each reactor’s temperature and retention duration can be customized.
Q: How are reactants transferred between the reactors?
A: Reactants are transferred between reactors via an overflow, using two additional peristaltic pumps on the supply unit for intermediate delivery.
Q: What accessory is required to operate this system?
A: The Service Unit for Chemical Reactors ReaktiLabX 09 is required to operate this system, providing pumps, tanks, and the heating water circuit.
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