Abstract: Apparatus for unloading particulate catalyst, e.g., cylindrically shaped catalyst, from a multiplicity of elongated reactor tubes is described. The apparatus comprises, in combination, a plurality of coaxial hollow pipe members contiguously arranged and bundled in a pattern reflecting the geometric pattern of the reactor tubes. Each pipe member has a cutting element having an axial passageway throughout its length and slots in the lower wall of the element affixed at one end. The pipe members and cutting elements have diameters smaller than the reactor tubes so that the pipe members can be inserted therein. The other end of the pipe members terminate within a manifold which is connected to a vacuum source. Vibratory means which deliver a downward force are attached to the manifold. In operation, the bundle of pipe members is positioned above the reactor and in line with reactor tubes filled with catalyst and open at both ends.

Abstract: Apparatus for charging granular catalyst, e.g., cylindrically shaped catalyst, into a multiplicity of elongated reactor tubes is described. The apparatus comprises, in combination, a plurality of contiguously arranged storage hoppers arranged in a bundle and disposed above a substantially horizontal vibratory feeder tray having a plurality of V-shaped open troughs equal in number to the number of storage hoppers. Each trough has a discharge opening at its forward end for delivering the catalyst to a discharge spout affixed to the bottom of the feeder tray and communicating with the discharge opening in the trough. Flexible elongated tubular conduits are attached to each discharge spout and rigid nozzle means attached to the end of each flexible tubular conduit. The nozzle is adapted for insertion into the top of the reactor tube. Electrical vibrating means are mechanically connected to the feeder tray.In operation, a predetermined quantity of catalyst is charged to each of the storage hoppers.