Pilot Reactor for PX Oxidation continuous experiment
Preheat the system, and purge it with nitrogen until the oxygen content of the outlet tail gas is zero.
Add liquid feed (acetic acid and catalyst) into the system and continuously heat the system to the reaction temperature.
Add pure air, continue heating until the reaction is triggered, and start insulation.
When the liquid level of reactants reaches the required height, start to control the discharge, and control the discharge speed to keep the liquid level stable.
In the whole reaction process, the pressure in the system is basically stable because of the front and back-up pressure.
With the continuation of the reaction process, for tower reaction, the gas from the top of the tower enters the gas-liquid separator through the condenser and enters the material storage tank. It can be returned to the tower or discharged into the material storage bottle according to the experimental needs.
For the kettle reaction, the gas from the kettle cover can be introduced into the condenser at the tower outlet. The condensed liquid is pumped back to the reactor with a constant flux pump, and the gas enters the tail gas treatment system.