The gas phase stirrers were two fan turbines with six blades each mounted in the gas phase while the liquid phase stirrer with two blades placed halfway down liquid's depth.
Both the gas and liquid phase stirrers were driven by the same shaft at speeds 0 - 2500 rpm that can be adjusted electronically within an accuracy of ± 1 rpm.
Eight baffles inside the reactor are designed to prevent vortex formation during the stirring of the liquid phase and also to ensure a flat horizontal interface.
A pressure transducer (Druck, PTX1400, U.K., 0-100kPa abs.) with accuracy 0.15%, was mounted on the flange and coupled with a data acquisition system to record the total pressure inside the reactor.