FLUIDIZED BED REACTOR, WITHDRAWN HOT WATER PIPE AND APPLICATION THEREOF IN ACRYLONITRILE PRODUCTION

摘要

Provided are a fluidized bed reactor (1) and a withdrawn hot water pipe (4) and an application thereof in acrylonitrile production, wherein the fluidized bed reactor (1) at least comprises a reaction withdrawal segment and a vertical inner member disposed in the reaction withdrawal segment, when transversely cutting along the direction perpendicular to the central axis of the fluidized bed reactor (1), the cross-sectional area of the reaction cooling segment is S1 (the unit is m ²), and the outer contour perimeter of the cross-section of the vertical inner member is L1 (the unit is m), then L1/S1=2.0-4.3m ^-1.