Abstract: In a fluidized bed reactor an approach flow floor extends across below the suspension phase. Approach flow bodies are positioned in openings in the flow floor, each flow body has a pick-up pocket in its upper surface with a flow hole extending downwardly from the pocket to the lower end of the flow body. The upper end of the flow hole conically widens as it approaches the pocket. A distribution plate is located within the pocket spaced upwardly from the upper end of the flow hole. A baffle plate is positioned on the lower surface of the distribution plate spaced above the flow hole. The upper surface of the flow floor is inclined upwardly from the openings in which the flow bodies are positioned.