We would like to acquire a unit dedicated mainly to the study of solvent degradation in the presence of various atmospheres. The unit would be a pressurized equipment equipped with at least 3 Hastelloy reactors of 150 mL (ideally 6 reactors depending on the quote) independent, agitated and which can operate in open mode (gas side), or closed mode (batch). An example of a reactor layout is shown in Figure 1 (please download the application docciiser via PLACE for more details).

Please download the application file via PLACE, to access the summary of the specifications with the description of the need.

The gas supply must be made via a mixture of 6 different sources (cylinders or network) including air, nitrogen, CO2, H2S and two various gas lines that can be modified over time.

The pressure in the reactors will be controlled by a regulator placed on the outlet line. The safety of the equipment will be ensured by a rupture disc.

A heating system must be used to control the temperature in the reactors.

A condenser, whose role is to limit the evaporation of the solvent, must be placed downstream of each reactor.

An optional cooling system should be used to control the cooling rate of the reactors.

The reactors must be equipped with several Hastelloy taps:

- 1 liquid phase tapping (which can be automated and controllable as an option)

- 2 gas phase taps, one upstream and one downstream of the condenser. These two taps will serve an on-line gas chromatography analyzer (device without quote). They must be automated, programmable and controllable. The lines downstream of the gas phase tapping of the reactor shall be drawn.

- 1 prick allowing the introduction of solvent (using a syringe for example).

The on-line analyzer will be common for all reactors. A controllable and programmable multi-port valve will be placed downstream of the reactors to select the flow to be analyzed.

The PLC and supervision of the unit must be provided by a SIEMENS solution (WinCC Unified) and the data must be able to be processed and retrieved via Historian.

In the event that the number of reactors of the proposed unit is less than 6 (depending on the estimate), it should be possible to add reactors a posteriori (modular and scalable unit).

Figure 1 Example of the desired layout of a reactor

Desired operating ranges:

Gas flow rates: 0-50 nL/h

Reactor temperature: 20-250°C

Condenser temperature: 0-8°C

Reactor pressure: 1-50 bar

Stirring speed: 0-2000 rpm