The main component of the tubular reactor with ten temperature-controlled sections. Two pumps convey the reactants from the receiving tanks into the preheating sections and then into the reactor. The electrical conductivity of the reaction mixture is measured at the inlet, in the centre and at the outlet of the reactor. While the reaction mixture flows through the reactor, the reactants react to the products. The preheating sections consist of a coiled tube located in the hot water tank. After preheating, the reactants are mixed just before they enter the reactor. The mixture of products and unreacted reactants leaves the reactor and is collected in a tank.

The reaction is analysed using the measured electrical conductivities and the conversion rate calculated from this. Sensors record the temperatures and electrical conductivities. The measured values are read from digital displays and can be transmitted simultaneously via USB directly to a PC where they can be analysed using the software.

The volumetric flow rates of the reactants and thus also the retention time in the tubular reactor are adjusted at the pumps. The controller on the switch cabinet makes it possible to set the desired temperature and displays the current temperature in the hot water tank. Three stirring machines ensure uniform mixing and temperature distribution in the reactant tanks and in the hot water tank. The ten sections of the tubular reactor consist of tubular heat exchangers. The reaction mixture flows in the inner tube of the heat exchanger and the hot water flows in the outer tube. This hot water circuit is temperature controlled. 

Specification:

Continuous tubular reactor to carry out a saponification reaction

Preheating of the reactants with 2 stainless steel coiled tubes

T-piece for mixing the preheated reactants

Measurements for electrical conductivity: at the inlet, centre and at the outlet of the reactor

Hot water tank with temperature control

10 tubular heat exchangers as reactor

2 identical pumps to convey the reactants

Adjustment of the volumetric flow rates of the reactants at the pumps

Measurement of conductivity and temperature with 3 combined sensors

Software for data acquisition via USB under Windows 8.1, 10.

Technical data:

Tanks

Reactants: 2x 25L

Products: 1x 50L

Water: 1x 30L

Reactant pump

Max. flow rate: 0,3L/min

Max. head: 20m

Tubular reactor

Ø inner: approx. 8mm

Reactor volume: approx. 0,5L

Material: 1.4571

Hot water circuit

Heater power: approx. 4kW

Temperature: max. 55°C

Stirring machines speed: max. 310min-1

Measuring ranges

Volumetric flow rate: 2x 2…320mL/min

Temperature: 4x 0…80°C

Conductivity: 3x 0…100mS/cm

400V, 50Hz, 3 phases

400V, 60Hz, 3 phases, 230V, 60Hz, 3 phases

Dimensions and weight

LxWxH: 1900x790x1950mm

Weight: 250kg.