In reactors with multiple catalyst beds, technological process includes a cooling phase between beds. This can be achieved by injection of the cooling medium (quench), which is then collected and mixed before being redistributed to the next bed.
Mixing system includes horizontal collection tray (a mixing chamber) which is located below the collection tray and has at least one passage from the tray to the mixing chamber.
For better mixing, the cooling liquid must be added into the zone above the collection tray. Direction of liquid injection is determined in a way to create a vortex flow on the collection tray.