RHDS residual Hydro Desulfurization VRDS Vacuum Residue Desulfurization Device for Vanadium-extracting of used-catalyst for RHDS and VRDS desulfurization

摘要

The present invention relates to a process for recovering vanadium metal adsorbed on a desulfurization spent catalyst generated in a residual hydrodesulfurization (RHDS) and a vacuum residual desulfurization (VRDS) process, To a vanadium extraction apparatus for a desulfurized spent catalyst in a vacuum residue desulfurization (VRDS) process. In order to accomplish the above object, the present invention provides a vanadium extracting apparatus comprising: a storage hopper for storing a waste catalyst from which oil and sulfur have been removed; A raw material injection regulator formed at a lower portion of the storage hopper for quantitatively controlling a waste catalyst dispensed from the storage hopper; A mesh basket for receiving waste catalysts dispensed quantitatively from the feedstock regulator; A transfer hoist for transferring the mesh basket containing spent catalyst to a solvent bath; A plurality of solvent tanks for receiving the mesh basket transferred from the transfer hoist to dissolve the vanadium included in the spent catalyst; A washing water tank for containing the mesh basket passed through the solvent water tank and washing the solvent remaining in the spent catalyst; A transfer conveyor for transferring the waste catalyst that has descended from the mesh basket passing through the wash water tank and transferring the waste catalyst; And a blower for removing the solvent remaining in the spent catalyst by applying hot air to the spent catalyst conveyed by the conveying conveyor, wherein the solvent separating the vanadium and the solvent from the solvent containing vanadium dissolved by the solvent water tank And further comprising a spatrier.