Compact quench zone reactor internals

A device for the mixing and distribution of fluid between catalyst beds comprising:

• a collection tray comprising a central opening, the collection tray in fluid communication with a bottom of an upper catalyst bed;
• a mixing chamber above the collection tray, the mixing chamber positioned around the central opening, the mixing chamber having an outer wall located at a position inward of a reactor wall and a top plate attached to the outer wall, the outer wall having at least two side spillways to allow fluid to pass therethrough, and the top plate having at least two top spillways to allow fluid to pass therethrough, the at least two top spillways being aligned with the at least two side spillways, and wherein the at least two top spillways and the at least two side spillways being equally spaced around the mixing chamber, the top plate in fluid communication with the bottom of the upper catalyst bed;
• a ring quench distributor comprising an injector for injecting quench fluid into a space above the collection tray between the reactor wall and the outer wall;
• a rough liquid distribution tray comprising a central pan in fluid communication with the central opening of the collection tray;
• and
• a vapor-liquid distribution tray in fluid communication with the rough liquid distribution tray and a top of a lower catalyst bed.